12 Days of Christmas
231st
32nd
612th
600th
789th
1,268th
249th
1,380th
55th
83rd
24 Game
187th
209th
55th
95th
314th
99 Bottles of Beer
107th
987th
328th
926th
596th
2,185th
474th
915th
Abundant Numbers
985th
1,395th
272nd568th
440th
1,421st
1,010th
376th165th
2,011th
297th
1,855th
1,577th
1,796th
2,468th876th341st
1,097th
Abundant Numbers (Long)
482nd
289th
984th
600th
1,462nd
563rd
582nd217th
249th681st
76th
1,188th
1,250th
937th711th887th
1,223rd
Arabic to Roman
554th
461st
149th
24th314th
260th956th290th268th78th
378th
300th
245th
1,000th227th
450th216th276th248th
830th
805th380th
473rd112th
206th
261st
Arithmetic Numbers
229th640th
946th
267th
285th
355th
254th
112th846th
133rd
660th
524th327th
Arrows
146th
622nd
298th138th
129th
194th
169th
122nd
456th139th
87th
286th
109th
443rd
151st
562nd
149th
Ascending Primes
237th248th
265th
240th
374th
581st
490th
119th297th
116th
391st
260th
320th
143rd
110th
ASCII Table
204th511th
96th
69th
338th
182nd
395th
64th788th145th
188th
392nd198th269th128th
616th
140th340th
261st
100th
Billiards
115th140th
138th
32nd
194th123rd
69th
259th126th
89th
45th
36th
200th72nd64th97th
237th
240th96th
196th
brainfuck
302nd
724th
182nd
272nd
1,160th
427th
143rd
185th
584th
370th
438th
893rd
536th
298th
112th
Calendar
108th
166th
75th
274th63rd
92nd98th85th86th
68th
59th
93rd67th
64th83rd79th
102nd
73rd
2nd
266th
229th
74th106th
Card Number Validation
177th213th
85th
118th
121st
202nd211th148th208th448th215th
107th
62nd187th
143rd127th82nd
65th69th275th191st165th
407th
307th168th
651st
119th
183rd
Catalan Numbers
539th
370th
326th311th
920th284th546th376th774th
783rd553rd
419th208th
1,032nd
145th
929th
35th
121st
535th
623rd
616th
Catalan’s Constant
268th
182nd
200th
2nd
266th
369th
Christmas Trees
229th
931st
690th55th
943rd
178th
109th
258th
166th
569th
945th
1,637th
1,088th339th
Collatz
466th
248th
497th
373rd
1,497th
2,366th
632nd
379th
497th
40th
484th380th1,025th
1,505th
1,253rd
343rd402nd
1,533rd580th
Continued Fractions
119th135th
90th
56th
137th81st
118th159th121st133rd
76th
59th121st
103rd116th95th
98th67th131st148th153rd
125th
276th
220th132nd
130th
157th
147th
CSS Colors
516th
538th
276th
81st
369th
563rd
249th533rd
1st
449th
290th
517th
Cubes
76th
580th
318th
27th
67th
21st
29th
558th
42nd
101st
Day of Week
724th721st648th
920th619th
204th
496th893rd595th485th
518th760th1,028th502nd335th
377th
403rd
568th280th114th364th
396th423rd409th667th571st
233rd1st
67th
925th953rd
702nd
461st
468th542nd
DFA Simulator
176th
99th
77th
254th
90th142nd140th
182nd
47th
108th69th
118th260th68th134th
169th
340th
289th126th
93rd244th
227th
Diamonds
143rd268th
284th
114th
163rd
488th
281st
121st
266th198th208th132nd
1,174th
1,005th
152nd
308th
Divisors
1,063rd1,209th
2,494th
1,301st
1,536th1,049th
833rd
1,215th
2,729th1,450th
3,439th1,241st1,330th746th214th
813th1,501st
2,068th
290th753rd1,452nd1,146th
2,411th
36th
3,489th1,508th327th1,089th
2,065th
2,354th
957th
Emirp Numbers
355th377th
634th
173rd
233rd
426th
211th
790th
736th494th
626th
400th
1,348th
833rd264th
467th
Emirp Numbers (Long)
148th
347th
290th
319th
334th
112th
239th
258th
759th
562nd
145th
93rd
Emojify
114th
127th
206th
131st
185th
62nd
132nd197th
261st
147th151st
120th
145th
406th
76th
Evil Numbers
1,177th1,005th
822nd
1,397th
468th648th
860th2,217th491st2,895th
676th
1,034th1,542nd
1,547th2,403rd
1st
813th
1,279th1,282nd
3,211th
50th
658th436th
1,253rd
1,063rd
1,056th2,465th
Evil Numbers (Long)
863rd
1,034th
416th
369th504th
902nd
339th
635th
723rd
1,263rd
1st
1,056th
1,782nd
124th
991st440th
550th
897th
Factorial Factorisation
115th
414th
187th
313th
54th
70th
370th
168th
Farey Sequence
304th
119th
240th
315th402nd512th
267th
507th
191st
246th438th388th405th
461st
585th
212th
366th
632nd
Fibonacci
2,551st2,585th3,591st5,739th
1,217th
1,938th450th654th4,354th2,318th3,559th1,005th5,104th1,901st1,120th2,456th2,612th1,145th4,764th4,517th
3,929th1,014th1st2,097th417th
6,507th1,934th492nd232nd8,679th5,722nd2,065th3,433rd534th2,594th2,217th2,792nd7,749th4,596th
56th
3,769th6,076th739th2,134th8,217th2,502nd3,452nd3,427th971st9,448th3,007th4,941st
Fizz Buzz
1,897th1,999th
1,479th
2,128th
3,578th3,365th1,998th
2,144th
5,421st5,266th7,834th2,201st
2,853rd5,309th1,251st2,715th
8,215th2,143rd585th23rd
3,813th1,649th
3,183rd
505th
10,052nd2,321st
2,725th7,656th2,076th
1,945th
3,666th
2,195th
Foo Fizz Buzz Bar
498th967th
1,881st1,384th384th
1,362nd
2,350th
1,527th
311th
788th
567th
909th
139th
1,105th
1,907th644th
1,520th
Forsyth–Edwards Notation
193rd229th
228th
100th
236th49th
124th631st130th273rd352nd319th
362nd
87th
118th106th
337th120th171st248th
227th
502nd
146th283rd421st420th532nd165th
507th
282nd264th
Fractions
467th486th
254th650th250th342nd
289th1,344th603rd
238th
229th
295th
375th
174th
307th408th560th649th
1,417th
96th
10th
334th
981st
825th
510th
Game of Life
131st154th172nd
91st100th
58th
95th40th
138th15th137th109th106th134th
193rd297th36th68th
76th153rd59th
101st47th64th102nd125th
44th
359th
432nd
285th123rd
337th
76th143rd
114th
Gijswijt’s Sequence
483rd
243rd269th
154th482nd126th
41st
253rd
112th85th287th
595th
105th
48th
Gray Code Decoder
214th226th
258th
138th
161st306th419th213th129th175th144th
119th16th168th192nd
104th66th325th
1st86th116th108th204th225th
91st
355th
155th208th
257th127th
148th
Gray Code Encoder
481st458th
318th
152nd
316th439th277th113th
251st559th307th332nd269th
215th187th211th426th
445th167th81st
179th1st234th339th285th467th430th16th197th
368th
56th288th424th
264th201st
513th
Happy Numbers
1,001st483rd
621st
244th
286th
503rd1,160th
470th435th819th411th
983rd484th
340th
1,020th1,014th767th
515th
826th766th
478th
796th
Happy Numbers (Long)
306th405th
319th
710th
260th
338th
459th560th222nd135th
596th
27th
650th
525th
311th
812th
1,114th
298th
763rd
Hexdump
188th182nd
97th
77th
162nd248th
133rd518th151st127th365th
235th
65th
114th76th
197th66th102nd144th153rd
180th
130th
267th
419th
363rd189th
Hilbert Curve
143rd
82nd
38th
Intersection
302nd292nd
87th
130th
238th
265th
359th59th
108th
643rd342nd528th151st
676th
796th
226th
164th
102nd
Inventory Sequence
401st313th
290th
116th
654th
181st
275th
150th
265th
509th359th145th653rd
340th
532nd253rd
652nd
ISBN
339th346th
625th253rd
190th
108th
158th985th272nd544th641st255th640th
227th925th174th150th
226th301st
350th263rd612th89th192nd287th
415th
840th
221st
555th333rd
502nd
211th309th
235th
Jacobi Symbol
203rd
120th
222nd
125th
16th
141st
394th
182nd429th
434th
321st
78th
Kaprekar Numbers
293rd
266th
108th
41st
157th
284th
265th
138th
Kolakoski Constant
268th
153rd
366th
442nd
Kolakoski Sequence
723rd
741st
867th
972nd
393rd92nd
747th
1st
914th
398th
987th
Leap Years
764th
209th
661st
1,055th
649th874th
327th
2,214th
230th
1,031st
307th243rd
759th627th78th
454th2,808th1,859th
985th
387th
3,473rd
547th
Levenshtein Distance
338th205th
226th
509th73rd
375th
58th
212th234th
271st
473rd
223rd154th183rd
18th
889th482nd
606th115th312th295th
529th168th161st
564th
Leyland Numbers
296th514th
496th
268th
324th
615th
139th188th
161st617th
594th
392nd
4th
261st
334th
175th
ln 2
178th
352nd204th74th
471st404th344th431st550th
634th
244th219th
81st
28th
696th
255th
227th
Look and Say
324th
389th
147th
199th70th
223rd144th302nd
482nd
592nd
163rd453rd
171st481st85th447th
166th135th166th479th
581st
761st
306th
182nd468th
509th
Lucky Numbers
253rd
265th
167th
318th
115th232nd164th
266th783rd
273rd103rd
332nd
144th287th
170th
149th
205th
753rd
Lucky Tickets
176th238th
141st
126th
172nd
107th113th
143rd
142nd
165th
9th
257th
95th
Mahjong
190th45th
88th
19th
11th
65th
55th
38th
304th
68th
Mandelbrot
109th
187th
259th
255th
73rd
102nd46th
131st460th345th115th186th145th
113th
53rd
127th201st
194th57th75th213th174th
239th
362nd
97th117th
128th102nd
192nd254th
Maze
125th173rd
67th
94th250th
242nd
49th195th
61st
121st
104th
357th
332nd
107th
81st
Medal Tally
142nd192nd
58th
173rd
176th228th124th
33rd
86th
72nd134th
295th
341st
115th
250th
292nd
Minesweeper
110th148th97th
98th
46th
132nd29th
85th
104th24th52nd56th
73rd191st47th174th
65th38th135th
34th58th71st91st
49th
256th
93rd
101st
90th
Morse Decoder
115th
48th
60th
84th
74th
43rd
88th130th
138th284th
99th
278th
208th103rd
104th
146th
Morse Encoder
307th
114th
102nd
269th
83rd
127th
292nd
90th
129th
112th
Multitap Input
81st
105th
54th
103rd21st
102nd45th98th115th
88th
67th125th
80th69th24th164th
72nd76th61st116th
74th
225th
120th
150th117th
94th99th
106th
Musical Chords
104th
64th
60th
83rd
270th
25th
59th
123rd
207th
191st
70th
N Queens
102nd99th
208th71st41st
118th140th
244th31st
117th24th143rd64th42nd102nd80th292nd82nd
84th
26th61st
40th81st10th
48th37th52nd73rd87th
51st
282nd
13th50th91st
78th67th69th92nd
65th112th
Niven Numbers
1,074th1,375th
578th
1,410th953rd
1,838th
1,277th824th875th758th785th1,244th1,527th1,451st2,659th
992nd1,795th829th337th
1,265th642nd77th1,772nd
1,737th660th366th1,232nd1,029th1,342nd
683rd
8th
2,136th408th1,178th
2,121st1,006th802nd1,391st
1,098th
Niven Numbers (Long)
1,424th819th
646th
1,055th
746th
400th
1,152nd1,368th449th261st
375th788th
1,070th
1,647th
1,450th
574th
983rd
458th
1,162nd
Number Spiral
134th244th
932nd
441st
321st
41st180th
187th
267th
315th279th
342nd
159th
144th
859th
433rd
227th75th
105th
Odious Numbers
1,039th
1,300th
355th
743rd
1,019th
589th
842nd
1,621st
1st
2,546th
48th
1,246th560th
2,348th
2,091st
2,143rd
Odious Numbers (Long)
1,036th
381st
307th
854th
287th
693rd
1,161st
1st
720th
703rd
1,670th
46th
962nd484th
1,013th
755th
Ordinal Numbers
427th464th
292nd
274th457th
713th1,146th441st
775th
291st503rd
341st
46th639th
1,021st175th375th385th
771st
111th
659th371st185th2nd
287th
PalindromemordnilaP
232nd237th
278th
201st130th
338th208th
57th108th
199th99th
90th223rd251st
168th
329th
39th
211th
151st
Pangram Grep
578th587th
2,292nd
558th
332nd366th
788th341st497th
980th
220th296th241st417th
394th783rd56th
248th831st172nd524th
899th
840th
421st703rd
536th
1,853rd1,648th393rd
1,115th
Partition Numbers
157th229th
130th
138th278th
578th287th
200th
164th
70th305th
135th238th419th
252nd123rd
180th
473rd
151st452nd
233rd
128th
124th230th
Pascal’s Triangle
497th583rd
333rd
244th
873rd574th
1,542nd577th1,133rd966th352nd
1,787th368th1,356th364th597th
1,373rd606th
1,366th761st
1st327th204th848th700th260th
887th
266th149th967th
174th434th
469th
473rd
Pernicious Numbers
1,004th
611th
466th
541st355th562nd
1,317th
1,163rd251st820th685th
1,023rd878th1,145th1,253rd
705th1st633rd
1,409th480th177th
971st412th516th893rd840th
302nd
42nd
944th436th1,124th
394th599th925th
653rd1,275th
Pernicious Numbers (Long)
189th
224th
618th
141st
170th
843rd
1,067th
264th
340th
Poker
151st
205th
257th
186th
119th
136th
98th
276th23rd104th83rd
112th
53rd
Polyominoes
64th
256th
Prime Numbers
926th973rd
1,460th
962nd
930th1,707th253rd2,121st
1,124th
660th338th
1st566th966th180th
1st1,740th393rd1,661st1,926th
2,313th
122nd
226th1,876th415th917th
1,801st
1,407th
Prime Numbers (Long)
897th875th
660th
1,431st
709th
177th
819th
650th1,200th
1st679th
1st573rd523rd1,177th1,307th
112th
899th
455th803rd
593rd
Proximity Grid
132nd156th
90th
80th
221st86th100th88th46th97th129th74th
117th
48th136th
84th57th204th126th
68th56th99th116th107th
146th
293rd
122nd127th
83rd
196th
QR Decoder
53rd
76th
185th
285th
309th
216th
227th
Quine
1st1,601st2,683rd4,373rd281st
2,998th2,207th4,775th1,538th4,752nd
1,943rd
663rd
2,830th2,230th2,291st1,755th4,885th628th
1,653rd3,559th2,064th2,929th5,303rd
1,994th1,613th2,724th1,729th3,475th1st2,859th1,351st3,138th1,958th1,800th559th3,274th
171st5,483rd4,124th485th4,516th1,932nd3,399th1,848th
1,785th
Recamán
796th
287th
764th
486th
442nd
555th
904th318th
358th
775th
780th
588th481st
916th
Repeating Decimals
64th
156th
67th
Reverse Polish Notation
377th283rd
163rd
169th511th
679th927th623rd564th356th595th
581st1st508th
225th417th347th
427th105th247th260th
610th
689th
750th195th289th
645th
536th
Reversi
169th
44th
94th25th
152nd91st113th
34th
81st237th
141st
57th
83rd
70th
289th
223rd
338th
32nd
Rijndael S-box
79th
556th
235th
225th
114th
29th
35th
112th
289th
49th
Rock-paper-scissors-Spock-lizard
245th
340th
326th
39th428th
120th
89th
484th
Roman to Arabic
333rd
270th
199th
453rd
72nd
995th
187th
329th
442nd
250th224th352nd116th
586th
261st
712th
ROT13
565th455th
793rd
511th
273rd356th401st522nd609th410th
582nd305th
294th577th263rd188th
249th
654th
409th160th364th623rd
77th
11th
307th207th285th349th656th761st
282nd
442nd
Rule 110
141st364th
131st
239th545th
186th636th
347th
72nd
140th
368th127th
862nd
251st
285th152nd
90th
Scrambled Sort
238th188th
198th
428th120th
132nd
155th145th339th194th241st159th192nd282nd229th
224th9th78th
161st130th290th
212th199th171st208th222nd
357th
304th
273rd147th184th207th
226th340th
293rd255th
Set
164th107th
136th89th
237th
153rd
130th192nd
85th223rd243rd134th
143rd
121st
87th181st244th
231st148th137th105th97th
205th
271st
215th135th
267th93rd141st
124th145th
Seven Segment
105th
99th
141st
175th
71st
340th
161st
597th
553rd
787th
142nd
461st
116th
SI Units
72nd
59th47th
52nd
183rd12th
204th94th60th32nd80th64th58th39th
68th29th
31st
50th25th
53rd
33rd226th28th56th75th
26th
278th
145th
48th55th51st54th41st62nd46th
164th79th
Sierpiński Triangle
189th330th
1,031st
622nd
206th
440th
1,113th
271st
652nd
1,836th
247th
295th
480th
Smith Numbers
125th
61st
384th
131st
530th
218th
71st
583rd
105th
Spelling Numbers
87th
1st
248th
281st
117th
Star Wars GPT
122nd
174th126th
117th38th177th
63rd
100th
172nd103rd83rd111th
276th
140th
110th
264th
Star Wars Opening Crawl
49th
230th
81st
388th
Sudoku
22nd
351st
Sudoku (Fill-in)
246th
196th
88th
84th132nd
62nd40th49th
92nd
59th
Ten-pin Bowling
152nd
236th
109th
71st22nd221st32nd
81st313th123rd105th88th
103rd
37th
90th61st201st42nd
164th91st74th120th
54th
6th
222nd234th197th119th
116th
113th
138th153rd
Tic-tac-toe
300th259th
84th
193rd
229th299th134th
277th
56th
119th247th
253rd
91st266th161st
267th
404th
217th
185th
201st
Time Distance
113th
464th
331st
176th
428th
459th
300th
233rd
494th
412th
94th
Tongue-twisters
659th
452nd
538th
983rd
134th
626th
856th
285th
537th358th
309th
973rd
Topological Sort
99th
46th
189th
75th
151st
61st
51st
63rd38th
64th
157th50th73rd
74th
209th
83rd
122nd
175th
Tower of Hanoi
239th332nd
80th
103rd
104th554th175th248th198th239th235th523rd169th675th549th
380th263rd1st42nd537th
217th113th
177th45th389th405th339th
374th56th
304th
244th
138th293rd
357th
197th
342nd
Transpose Sentence
369th306th
246th
395th
211th166th
266th
584th
251st1st189th124th
117th299th
33rd297th157th398th103rd
452nd
555th
286th
236th
285th
Trinomial Triangle
157th224th450th
119th116th
122nd
92nd216th230th294th
165th126th
146th
153rd
70th
111th223rd66th
1st89th97th106th150th148th
395th
235th
227th
141st100th
162nd152nd100th231st
135th
United States
168th
74th
269th
444th158th
361st
68th
536th
193rd
334th275th343rd
272nd
176th
238th
Vampire Numbers
166th
53rd
341st
129th
81st202nd
72nd
373rd196th197th
404th
130th
76th
Van Eck Sequence
519th
654th
317th
560th
203rd
522nd
681st
126th
288th
285th
233rd
Zeckendorf Representation
199th
203rd
641st
269th
390th
206th
75th407th
375th82nd141st
482nd
163rd
195th
Zodiac Signs
153rd
440th
369th
165th
68th
386th
347th
γ
269th
1st
λ
146th
13th
252nd
31st373rd248th
574th121st
354th287th371st
109th720th670th
409th
562nd
67th
44th
786th
π
68th
938th
796th
105th
331st
622nd
1,237th296th
7th
602nd
311th
209th
τ
99th
94th
295th
584th
932nd172nd
398th
285th
170th
φ
306th
283rd
227th
543rd
725th
404th728th194th
598th
214th
675th
490th
258th
472nd
√2
291st
321st308th237th
663rd
438th
329th
209th
245th
145th
299th
4th
273rd
258th623rd
𝑒
274th
317th294th211th
569th
794th
325th
1,056th
121st
20th
374th
470th