12 Days of Christmas
84th
174th
2,177th
349th
664th
173rd
184th
226th
11th
35th
101st
147th
146th
243rd
438th
210th
282nd
408th
227th
24 Game
116th
99 Bottles of Beer
102nd
277th
505th
210th
331st
148th
149th
174th
115th
314th
406th
541st
123rd
168th
71st
164th
243rd
240th
428th
Abundant Numbers
103rd
882nd
497th
1,523rd
2,197th
261st
846th
346th
1,164th
843rd
281st
724th
1,264th
775th
197th
321st
50th
76th
894th
65th
1,098th
295th
11th
1,419th
946th
253rd
629th
98th
1,658th
876th
413th
45th
1,019th
236th
286th
833rd
213th
733rd
Abundant Numbers (Long)
65th
306th
440th
327th
702nd
389th
56th
459th
729th
477th
616th
451st
39th
74th
48th
161st
345th
11th
114th
254th
996th
965th
69th
628th
823rd
107th
94th
1,043rd
329th
118th
150th
228th
266th
Arabic to Roman
116th
459th
748th
195th
38th
2nd
356th
92nd
220th
Arithmetic Numbers
53rd
389th
370th
147th
177th
383rd
337th
349th
585th
620th
38th
163rd
640th
491st
486th
Arrows
24th
195th
292nd
47th
236th
111th
119th
88th
76th
121st
73rd
136th
255th
10th
105th
148th
96th
Ascending Primes
212th
530th
180th
244th
59th
24th
112th
ASCII Table
63rd
118th
247th
155th
202nd
180th
550th
80th
72nd
74th
404th
156th
133rd
196th
161st
373rd
142nd
226th
brainfuck
57th
113th
268th
70th
202nd
177th
95th
107th
109th
134th
181st
34th
377th
174th
108th
21st
28th
161st
10th
126th
Catalan Numbers
1st
496th
314th
312th
427th
239th
317th
510th
156th
200th
396th
21st
108th
870th
486th
432nd
433rd
357th
34th
231st
92nd
389th
Catalan’s Constant
39th
180th
220th
73rd
3rd
51st
133rd
48th
97th
76th
Christmas Trees
590th
236th
556th
288th
111th
371st
378th
316th
1,718th
370th
192nd
180th
364th
943rd
675th
69th
187th
44th
1,244th
254th
Collatz
56th
678th
248th
522nd
242nd
396th
440th
914th
653rd
439th
28th
217th
330th
8th
743rd
342nd
311th
616th
727th
215th
427th
3rd
207th
1,022nd
57th
437th
255th
CSS Colors
481st
232nd
16th
243rd
1st
237th
40th
265th
254th
Cubes
55th
497th
255th
220th
189th
Day of Week
492nd
425th
169th
342nd
248th
515th
324th
317th
713th
1st
564th
46th
280th
607th
214th
DFA Simulator
60th
74th
14th
66th
59th
126th
3rd
22nd
12th
106th
Diamonds
187th
105th
319th
229th
99th
211th
155th
38th
344th
158th
217th
355th
169th
190th
65th
346th
595th
290th
223rd
Divisors
381st
1,972nd
930th
1,696th
3,776th
815th
385th
1,552nd
537th
959th
937th
759th
2,087th
965th
1,115th
520th
408th
1,427th
1st
771st
476th
285th
402nd
439th
817th
1,456th
376th
372nd
1,113th
22nd
299th
2,056th
338th
481st
918th
795th
732nd
Emirp Numbers
89th
433rd
786th
50th
265th
360th
302nd
155th
115th
393rd
512th
791st
4th
346th
556th
650th
109th
260th
308th
508th
189th
125th
133rd
27th
486th
218th
Emirp Numbers (Long)
74th
147th
213th
50th
152nd
4th
173rd
281st
85th
96th
117th
223rd
42nd
70th
129th
Emojify
1st
58th
75th
45th
Evil Numbers
955th
1,635th
755th
1,466th
756th
1,079th
370th
659th
583rd
274th
803rd
576th
1,792nd
450th
673rd
1,351st
533rd
1,447th
1,196th
1,948th
134th
502nd
336th
1st
898th
1,795th
694th
1,053rd
988th
816th
1,560th
511th
35th
253rd
1,551st
1,043rd
1,186th
2,069th
1,227th
885th
895th
Evil Numbers (Long)
610th
583rd
466th
666th
177th
343rd
191st
439th
940th
579th
267th
463rd
855th
446th
790th
708th
59th
852nd
289th
1st
393rd
727th
601st
774th
767th
449th
732nd
363rd
87th
174th
1,127th
611th
677th
421st
400th
458th
Factorial Factorisation
21st
60th
120th
83rd
116th
112th
92nd
20th
167th
84th
85th
Farey Sequence
120th
144th
266th
53rd
304th
202nd
258th
170th
213th
269th
78th
169th
7th
227th
234th
68th
270th
Fibonacci
137th
4,366th
2,645th
1,481st
1,914th
4,909th
513th
325th
730th
4,013th
2,094th
285th
1,648th
1,483rd
1,691st
886th
1,538th
1,519th
2,797th
588th
1st
298th
2,359th
2,237th
1,664th
470th
143rd
3,798th
3,015th
1,997th
388th
1,671st
1,853rd
2,202nd
2,075th
276th
1,429th
1,609th
30th
243rd
2,013th
256th
2,001st
1,622nd
1,696th
796th
6,565th
1,526th
2,413th
Fizz Buzz
553rd
555th
3,944th
2,957th
3,221st
2,139th
563rd
2,306th
1,272nd
1,726th
2,319th
2,706th
3,208th
7,077th
3,763rd
3,101st
3,860th
3,795th
1st
1,910th
5,621st
1,168th
1,759th
1,030th
104th
3,227th
1,451st
984th
3,848th
4,079th
1,170th
507th
4,102nd
3,904th
46th
91st
2,802nd
449th
2,811th
2,135th
2,338th
2,734th
Foo Fizz Buzz Bar
333rd
911th
518th
607th
247th
997th
1,304th
988th
624th
1,085th
510th
986th
703rd
325th
996th
1,054th
355th
228th
502nd
851st
10th
161st
924th
773rd
627th
529th
Forsyth–Edwards Notation
32nd
92nd
120th
105th
118th
62nd
112th
193rd
53rd
123rd
7th
149th
10th
78th
Fractions
259th
366th
411th
442nd
204th
401st
511th
449th
671st
789th
429th
348th
91st
84th
600th
9th
245th
Game of Life
183rd
128th
37th
171st
Gijswijt’s Sequence
48th
103rd
109th
105th
171st
49th
84th
49th
65th
83rd
166th
120th
99th
42nd
12th
88th
93rd
128th
Happy Numbers
101st
1,252nd
476th
725th
1,232nd
449th
363rd
561st
126th
378th
279th
167th
512th
179th
735th
235th
259th
565th
1st
174th
238th
383rd
635th
291st
241st
28th
68th
463rd
69th
918th
628th
567th
310th
Happy Numbers (Long)
86th
218th
253rd
272nd
75th
714th
287th
145th
332nd
127th
369th
113th
231st
1st
136th
364th
256th
476th
185th
115th
82nd
409th
52nd
194th
216th
Hexdump
129th
64th
138th
91st
152nd
182nd
132nd
148th
128th
2nd
130th
157th
104th
Intersection
140th
159th
94th
123rd
316th
140th
75th
306th
137th
614th
18th
20th
40th
105th
Inventory Sequence
12th
131st
293rd
136th
251st
180th
326th
183rd
275th
206th
186th
435th
333rd
177th
207th
329th
320th
257th
59th
121st
193rd
254th
363rd
ISBN
4th
687th
114th
464th
283rd
271st
240th
334th
62nd
242nd
161st
264th
327th
441st
280th
19th
45th
313th
290th
196th
302nd
Jacobi Symbol
114th
103rd
210th
49th
17th
130th
85th
223rd
332nd
322nd
119th
68th
149th
87th
70th
Kolakoski Constant
8th
112th
87th
192nd
152nd
111th
52nd
135th
136th
Kolakoski Sequence
17th
284th
422nd
808th
517th
394th
90th
424th
327th
274th
292nd
122nd
76th
70th
545th
170th
1st
277th
453rd
374th
129th
258th
250th
208th
372nd
347th
67th
288th
180th
Leap Years
94th
994th
1,646th
183rd
1,882nd
550th
271st
315th
96th
398th
475th
256th
283rd
787th
1st
191st
1,244th
481st
547th
31st
153rd
387th
655th
1,657th
83rd
323rd
11th
378th
336th
77th
850th
1,047th
489th
1,062nd
241st
Levenshtein Distance
122nd
81st
160th
111th
245th
200th
188th
380th
65th
497th
39th
357th
3rd
521st
Leyland Numbers
388th
598th
124th
593rd
224th
214th
350th
347th
16th
279th
172nd
237th
560th
256th
19th
325th
367th
244th
ln 2
122nd
332nd
98th
208th
196th
163rd
206th
220th
3rd
130th
21st
154th
80th
212th
Look and Say
113th
181st
415th
428th
286th
222nd
178th
214th
468th
186th
161st
42nd
121st
247th
193rd
7th
254th
362nd
103rd
261st
36th
262nd
189th
Lucky Numbers
57th
161st
100th
115th
80th
66th
180th
141st
137th
160th
126th
185th
31st
150th
216th
78th
119th
130th
215th
256th
243rd
162nd
16th
60th
181st
143rd
219th
Lucky Tickets
130th
122nd
51st
161st
159th
131st
109th
94th
175th
80th
9th
40th
66th
78th
Mahjong
8th
Maze
35th
Medal Tally
107th
141st
114th
77th
101st
68th
87th
120th
155th
95th
18th
150th
156th
Morse Decoder
5th
278th
105th
112th
48th
42nd
210th
98th
121st
91st
10th
28th
73rd
Morse Encoder
23rd
448th
154th
120th
71st
123rd
126th
44th
186th
Musical Chords
109th
Niven Numbers
55th
1,465th
255th
840th
496th
1,800th
736th
286th
919th
1,021st
345th
218th
891st
712th
656th
628th
1,001st
1,145th
857th
1st
266th
2,414th
932nd
582nd
518th
81st
233rd
1st
314th
405th
967th
954th
171st
564th
334th
726th
194th
66th
1,665th
343rd
378th
477th
701st
594th
639th
1,106th
Niven Numbers (Long)
576th
1,160th
1,073rd
444th
397th
455th
173rd
468th
157th
64th
883rd
337th
481st
285th
496th
693rd
452nd
12th
635th
299th
266th
350th
234th
135th
1st
502nd
434th
544th
561st
822nd
390th
44th
34th
929th
75th
364th
381st
310th
475th
873rd
644th
Number Spiral
214th
165th
313th
238th
18th
7th
428th
235th
24th
114th
Odious Numbers
1,008th
242nd
1,499th
508th
1,044th
232nd
593rd
286th
210th
879th
533rd
1,554th
393rd
575th
922nd
989th
1,776th
102nd
410th
185th
1st
608th
316th
583rd
814th
895th
542nd
1,622nd
449th
33rd
148th
1,347th
834th
912th
1,903rd
1,295th
1,030th
682nd
Odious Numbers (Long)
720th
212th
447th
616th
198th
268th
153rd
455th
854th
231st
437th
730th
395th
573rd
629th
85th
866th
168th
1st
369th
493rd
610th
500th
716th
775th
605th
357th
31st
117th
1,089th
556th
630th
403rd
681st
432nd
Ordinal Numbers
85th
487th
1,034th
382nd
472nd
498th
667th
311th
297th
580th
859th
315th
111th
397th
154th
616th
476th
122nd
755th
447th
196th
86th
942nd
190th
3rd
308th
621st
Pangram Grep
413th
1,146th
1,301st
133rd
293rd
792nd
118th
372nd
552nd
1st
435th
648th
724th
20th
467th
285th
616th
421st
31st
109th
187th
395th
647th
Pascal’s Triangle
136th
386th
1,632nd
553rd
437th
819th
770th
441st
560th
507th
1st
599th
326th
207th
543rd
426th
351st
35th
70th
487th
94th
380th
667th
Pernicious Numbers
474th
475th
290th
639th
441st
1,353rd
209th
293rd
455th
746th
342nd
194th
670th
617th
580th
602nd
712th
817th
509th
1st
1,124th
822nd
70th
534th
537th
113th
574th
17th
270th
393rd
720th
655th
173rd
238th
94th
593rd
24th
143rd
885th
157th
362nd
1,326th
625th
431st
413th
491st
804th
Pernicious Numbers (Long)
161st
337th
227th
213th
141st
59th
97th
462nd
39th
512th
279th
281st
344th
176th
9th
36th
611th
75th
427th
Poker
97th
Prime Numbers
252nd
1,260th
1,147th
1,109th
2,000th
289th
738th
412th
1,337th
1,118th
606th
219th
1,196th
1,684th
1,226th
260th
2,966th
1st
553rd
124th
1st
276th
462nd
1,365th
243rd
1,045th
511th
88th
159th
1,046th
175th
813th
1,462nd
1,126th
862nd
563rd
Prime Numbers (Long)
244th
674th
683rd
735th
297th
431st
634th
505th
118th
718th
834th
759th
638th
1st
470th
693rd
802nd
1st
349th
414th
658th
682nd
420th
78th
153rd
1,016th
222nd
310th
524th
385th
Proximity Grid
166th
QR Decoder
132nd
Quine
1st
1,518th
215th
2,341st
2,620th
1,724th
3,364th
1,221st
3,258th
2,925th
2,320th
1,372nd
1,552nd
2,368th
1,499th
3,300th
1,376th
520th
2,087th
1,430th
2,864th
1,008th
1,608th
499th
1,602nd
1,327th
191st
1,169th
1,029th
1,091st
1,417th
1,579th
1,477th
444th
2,419th
3,228th
1,536th
141st
489th
2,076th
386th
1,272nd
2,605th
1,452nd
1,794th
1,443rd
4,065th
2,005th
Recamán
42nd
184th
414th
193rd
54th
265th
153rd
115th
248th
181st
149th
30th
84th
119th
139th
348th
460th
143rd
236th
10th
40th
297th
29th
216th
128th
Repeating Decimals
41st
106th
130th
66th
84th
108th
76th
20th
1st
35th
105th
Reverse Polish Notation
113th
343rd
372nd
318th
99th
179th
1st
339th
581st
112th
172nd
204th
150th
275th
51st
287th
386th
186th
Rijndael S-box
108th
54th
117th
70th
138th
17th
115th
60th
Rock-paper-scissors-Spock-lizard
💎
740th
42nd
127th
108th
99th
45th
117th
92nd
23rd
22nd
166th
78th
Roman to Arabic
155th
774th
207th
8th
333rd
434th
347th
340th
299th
21st
214th
46th
202nd
Rule 110
79th
131st
394th
109th
134th
120th
159th
116th
174th
142nd
382nd
94th
44th
65th
10th
104th
Seven Segment
48th
198th
459th
118th
77th
193rd
82nd
39th
60th
102nd
197th
288th
45th
33rd
124th
Sierpiński Triangle
27th
316th
262nd
243rd
220th
151st
167th
402nd
260th
295th
181st
174th
229th
203rd
20th
263rd
Smith Numbers
27th
196th
140th
114th
96th
131st
249th
6th
105th
60th
335th
91st
171st
34th
25th
107th
28th
81st
Spelling Numbers
173rd
202nd
182nd
189th
1st
109th
284th
245th
96th
70th
178th
Star Wars Opening Crawl
175th
44th
83rd
Sudoku
92nd
Sudoku v2
85th
Ten-pin Bowling
172nd
82nd
140th
160th
129th
64th
55th
93rd
77th
62nd
9th
Time Distance
55th
332nd
95th
118th
64th
109th
223rd
69th
70th
4th
Tongue-twisters
537th
576th
341st
144th
81st
46th
207th
185th
90th
123rd
United States
211th
253rd
142nd
85th
117th
178th
181st
2nd
106th
67th
Vampire Numbers
327th
43rd
76th
52nd
193rd
87th
233rd
235th
135th
77th
17th
136th
132nd
194th
Van Eck Sequence
29th
184th
306th
133rd
98th
243rd
322nd
203rd
145th
238th
1st
465th
205th
64th
195th
254th
367th
55th
76th
140th
8th
80th
225th
46th
197th
152nd
Zodiac Signs
7th
133rd
227th
94th
52nd
123rd
117th
79th
56th
77th
γ
1st
λ
865th
220th
14th
π
252nd
345th
457th
268th
319th
203rd
244th
193rd
416th
4th
225th
23rd
85th
137th
208th
245th
144th
118th
93rd
173rd
277th
317th
206th
τ
211th
314th
430th
212th
291st
169th
232nd
133rd
372nd
4th
144th
25th
168th
217th
229th
97th
117th
75th
143rd
250th
286th
186th
φ
158th
361st
575th
162nd
284th
240th
333rd
212th
191st
111th
539th
355th
149th
432nd
243rd
308th
336th
12th
206th
29th
7th
628th
221st
290th
√2
162nd
390th
441st
173rd
301st
288th
356th
217th
204th
2nd
329th
116th
483rd
297th
314th
347th
11th
212th
32nd
101st
811th
283rd
163rd
𝑒
256th
352nd
961st
177th
239th
367th
300th
381st
291st
142nd
326th
15th
205th
220th
338th
402nd
159th
211th
55th
115th
325th
118th
236th