12 Days of Christmas
1,498th
1,309th
723rd
1,171st
2,375th
894th
841st
208th
310th
211th
1,327th
254th
243rd
99 Bottles of Beer
822nd
905th
713th
724th
688th
1,217th
640th
2,290th
747th
360th
267th
297th
2,288th
1,884th
907th
570th
346th
396th
2,320th
270th
1,932nd
1,087th
1,466th
684th
Abundant Numbers
2,121st
798th
700th
573rd
1,122nd
2,163rd
1,083rd
860th
470th
500th
1,838th
1,754th
1,790th
461st
2,111th
901st
1,635th
Abundant Numbers (Long)
1,310th
891st
204th
913th
1,396th
1,236th
600th
555th
315th
562nd
1,211th
761st
1,216th
650th
1,118th
395th
1,152nd
Arabic to Roman
358th
900th
487th
727th
461st
312th
471st
448th
59th
917th
437th
262nd
Arithmetic Numbers
450th
196th
467th
415th
297th
424th
791st
442nd
58th
Arrows
415th
432nd
401st
379th
392nd
337th
388th
496th
483rd
398th
344th
Ascending Primes
274th
137th
276th
263rd
249th
331st
ASCII Table
538th
321st
201st
267th
378th
409th
186th
327th
735th
585th
342nd
496th
485th
brainfuck
755th
733rd
491st
474th
331st
443rd
547th
618th
926th
599th
464th
Catalan Numbers
1,072nd
1,079th
374th
1,099th
956th
506th
560th
356th
378th
1,194th
904th
670th
186th
866th
Catalan’s Constant
535th
522nd
273rd
515th
491st
276th
370th
333rd
3rd
777th
541st
448th
376th
Christmas Trees
1,508th
1,013th
555th
786th
1,793rd
542nd
1,095th
324th
444th
537th
1,693rd
668th
1,020th
373rd
379th
376th
Collatz
1,624th
1,040th
183rd
662nd
1,820th
1,443rd
673rd
225th
411th
1,659th
1,398th
994th
1,528th
86th
1,283rd
1,248th
CSS Colors
453rd
480th
700th
454th
457th
349th
309th
448th
397th
351st
239th
287th
Cubes
329th
667th
195th
672nd
773rd
78th
518th
117th
194th
184th
485th
122nd
601st
303rd
Day of Week
428th
728th
696th
732nd
356th
642nd
46th
DFA Simulator
207th
148th
226th
128th
120th
Diamonds
839th
606th
467th
573rd
1,089th
688th
593rd
968th
324th
456th
215th
898th
1,063rd
754th
1,090th
581st
933rd
Divisors
2,936th
1,646th
1,532nd
2,101st
3,753rd
1,756th
1,186th
1,144th
1,308th
2,388th
1,361st
2,441st
1,958th
1,680th
22nd
2,325th
Emirp Numbers
833rd
698th
502nd
707th
282nd
855th
796th
441st
624th
805th
1,514th
1,119th
682nd
505th
567th
Emirp Numbers (Long)
677th
245th
204th
218th
348th
222nd
184th
228th
369th
294th
448th
359th
259th
Emojify
265th
813th
353rd
704th
566th
350th
243rd
542nd
589th
267th
297th
Evil Numbers
1,640th
535th
459th
643rd
661st
1,090th
823rd
742nd
419th
337th
1,661st
1,665th
2,131st
1,006th
2,651st
35th
1,425th
2,055th
1,668th
Evil Numbers (Long)
1,078th
532nd
254th
514th
1,431st
746th
472nd
525th
389th
291st
853rd
1,006th
1,149th
580th
1,188th
87th
806th
778th
936th
Farey Sequence
554th
523rd
485th
484th
451st
444th
541st
421st
422nd
Fibonacci
3,707th
513th
695th
730th
4,009th
2,110th
3,284th
1,655th
6,495th
817th
5,582nd
655th
143rd
3,828th
4,659th
388th
3,495th
2,383rd
4,087th
2,980th
2,396th
30th
4,380th
2,411th
3,178th
1,636th
3,469th
4,016th
2,555th
Fizz Buzz
9,877th
2,652nd
8,241st
8,883rd
2,143rd
2,396th
3,913th
5,536th
6,466th
4,576th
7,341st
6,954th
9,942nd
4,728th
2,794th
7,576th
10,070th
1,032nd
104th
3,468th
10,802nd
3,524th
3,023rd
4,311th
4,799th
1,819th
507th
4,327th
8,600th
598th
3,454th
449th
4,000th
10,594th
10,496th
3,745th
5,168th
10,383rd
7,048th
Foo Fizz Buzz Bar
1,063rd
1,922nd
1,143rd
1,231st
1,203rd
1,920th
1,429th
1,446th
1,941st
1,835th
1,379th
460th
376th
639th
1,316th
1,800th
1,636th
1,229th
1,602nd
658th
228th
675th
10th
1,126th
1,383rd
1,624th
1,109th
1,282nd
2,076th
1,689th
Forsyth–Edwards Notation
472nd
292nd
248th
155th
165th
318th
350th
205th
Fractions
1,219th
1,064th
620th
1,055th
1,084th
981st
1,205th
351st
768th
970th
1,209th
1,150th
1,008th
283rd
359th
Game of Life
326th
444th
375th
328th
251st
363rd
357th
286th
277th
Gijswijt’s Sequence
327th
197th
301st
257th
410th
351st
278th
Happy Numbers
1,377th
450th
480th
580th
366th
849th
924th
542nd
659th
890th
1,738th
1,122nd
362nd
97th
402nd
691st
Happy Numbers (Long)
938th
719th
744th
594th
894th
735th
424th
464th
524th
665th
642nd
846th
875th
933rd
338th
862nd
Hexdump
223rd
260th
161st
230th
367th
402nd
306th
Intersection
791st
826th
530th
830th
584th
417th
442nd
470th
881st
173rd
247th
617th
Inventory Sequence
291st
137th
223rd
170th
272nd
195th
175th
501st
432nd
193rd
104th
ISBN
930th
807th
740th
684th
569th
305th
164th
702nd
754th
358th
197th
Jacobi Symbol
440th
241st
193rd
294th
331st
426th
336th
208th
Kolakoski Constant
554th
533rd
237th
514th
456th
269th
150th
238th
273rd
716th
576th
355th
214th
Kolakoski Sequence
832nd
605th
159th
547th
919th
716th
599th
745th
174th
170th
889th
769th
333rd
258th
799th
208th
771st
Leap Years
1,686th
669th
463rd
408th
2,663rd
1,142nd
520th
1,689th
3,161st
792nd
191st
368th
31st
656th
2,114th
1,379th
2,137th
897th
324th
1,678th
525th
1,816th
1,239th
747th
981st
1,061st
745th
2,012th
Levenshtein Distance
728th
654th
549th
665th
210th
177th
446th
462nd
489th
757th
65th
626th
Leyland Numbers
589th
903rd
834th
886th
957th
737th
876th
545th
789th
516th
576th
491st
190th
ln 2
395th
456th
406th
354th
475th
60th
452nd
266th
Look and Say
762nd
847th
811th
786th
986th
796th
765th
685th
237th
834th
477th
456th
479th
Lucky Numbers
637th
377th
535th
382nd
675th
549th
466th
432nd
371st
433rd
530th
451st
31st
Lucky Tickets
412th
384th
267th
347th
297th
167th
268th
272nd
443rd
313th
281st
Mahjong
110th
93rd
42nd
Maze
118th
190th
252nd
127th
260th
209th
Medal Tally
295th
226th
247th
336th
293rd
280th
Morse Decoder
188th
280th
263rd
278th
293rd
275th
241st
301st
240th
307th
238th
Morse Encoder
343rd
414th
264th
400th
292nd
235th
206th
253rd
303rd
260th
227th
Musical Chords
290th
307th
249th
281st
226th
231st
198th
238th
278th
183rd
180th
Niven Numbers
1,361st
1,222nd
544th
1,212th
1,022nd
1,331st
1,018th
980th
691st
81st
1,085th
1,311th
1,245th
566th
1,739th
424th
1,047th
Niven Numbers (Long)
1,334th
952nd
976th
916th
1,344th
690th
163rd
543rd
1,056th
602nd
407th
Number Spiral
392nd
464th
484th
749th
264th
390th
401st
431st
524th
902nd
441st
826th
545th
Odious Numbers
1,506th
370th
327th
663rd
596th
1,016th
911th
624th
356th
186th
1,289th
1,618th
2,142nd
1,023rd
2,519th
33rd
1,057th
1,708th
1,492nd
Odious Numbers (Long)
921st
330th
246th
431st
1,243rd
685th
480th
463rd
383rd
169th
779th
934th
1,140th
726th
1,202nd
31st
728th
770th
843rd
Ordinal Numbers
516th
852nd
810th
1,011th
1,205th
589th
511th
111th
655th
161st
568th
572nd
523rd
Pangram Grep
1,657th
1,295th
879th
1,400th
1,646th
733rd
1,120th
1,357th
1,412th
553rd
931st
1,333rd
1,176th
1,595th
1,059th
335th
529th
501st
1,215th
1,132nd
Pascal’s Triangle
1,160th
687th
339th
636th
1,375th
961st
776th
1,640th
710th
353rd
488th
360th
780th
444th
588th
854th
154th
1,507th
94th
641st
Pernicious Numbers
1,791st
1,409th
1,406th
1,292nd
747th
1,539th
1,200th
1,197th
881st
1,023rd
1,041st
1,661st
1,330th
880th
968th
1,414th
Pernicious Numbers (Long)
674th
620th
598th
548th
783rd
644th
367th
484th
303rd
557th
349th
786th
718th
538th
330th
430th
Poker
298th
225th
197th
222nd
217th
166th
156th
210th
322nd
263rd
130th
Prime Numbers
2,069th
1,177th
800th
1,230th
742nd
2,092nd
1,671st
2,797th
3,558th
953rd
1,647th
3,754th
776th
634th
1,628th
3,142nd
2,954th
1,673rd
2,060th
1,654th
1,450th
1,724th
308th
1,279th
362nd
1,020th
3,513th
1,742nd
1,906th
3,934th
2,208th
1,871st
Prime Numbers (Long)
1,730th
829th
495th
680th
1,524th
897th
822nd
1,286th
1,657th
608th
531st
696th
1,006th
841st
660th
798th
779th
913th
370th
910th
222nd
448th
1,245th
990th
896th
1,034th
958th
Proximity Grid
281st
200th
235th
219th
262nd
315th
259th
218th
QR Decoder
242nd
276th
263rd
264th
266th
239th
255th
258th
287th
248th
294th
257th
Quine
1st
216th
3,707th
2,212th
3,366th
1,226th
3,512th
4,015th
3,225th
2,226th
2,242nd
3,251st
4,145th
2,736th
2,818th
1,752nd
3,082nd
1,332nd
1,824th
1,174th
1,034th
1,096th
3,206th
1,585th
1,482nd
445th
1,224th
3,690th
2,650th
537th
3,082nd
387th
1,277th
2,921st
2,673rd
2,790th
4,182nd
4,156th
Recamán
581st
308th
190th
199th
1,010th
305th
541st
170th
132nd
627th
676th
655th
428th
683rd
223rd
Repeating Decimals
206th
267th
153rd
264th
302nd
169th
254th
220th
218th
247th
Reverse Polish Notation
775th
555th
534th
536th
518th
497th
572nd
716th
376th
Rijndael S-box
379th
309th
366th
257th
248th
286th
288th
Rock-paper-scissors-Spock-lizard
111th
678th
327th
666th
341st
60th
134th
175th
214th
323rd
36th
312th
170th
Roman to Arabic
409th
611th
511th
556th
435th
366th
311th
309th
411th
429th
357th
82nd
Rule 110
585th
566th
474th
519th
489th
266th
349th
495th
346th
728th
605th
446th
Seven Segment
473rd
408th
412th
304th
951st
293rd
219th
132nd
466th
843rd
568th
147th
384th
222nd
SI Units
95th
87th
73rd
139th
30th
130th
Sierpiński Triangle
439th
367th
366th
364th
434th
595th
387th
907th
326th
689th
308th
327th
552nd
848th
712th
497th
496th
372nd
190th
345th
737th
369th
Smith Numbers
791st
502nd
381st
411th
698th
419th
251st
378th
496th
547th
544th
404th
Spelling Numbers
515th
307th
231st
355th
225th
390th
161st
345th
42nd
450th
282nd
451st
Star Wars Opening Crawl
239th
310th
138th
312th
99th
126th
155th
149th
298th
196th
163rd
Sudoku
278th
279th
267th
265th
246th
216th
232nd
181st
164th
223rd
Sudoku v2
259th
273rd
261st
266th
247th
258th
267th
263rd
264th
Ten-pin Bowling
285th
213th
227th
204th
350th
229th
185th
169th
267th
320th
182nd
224th
Time Distance
372nd
188th
174th
175th
202nd
330th
250th
183rd
Tongue-twisters
161st
976th
416th
986th
796th
1,026th
435th
291st
168th
400th
641st
246th
87th
311th
398th
United States
358th
313th
458th
268th
216th
246th
226th
260th
304th
233rd
266th
Vampire Numbers
757th
570th
475th
564th
494th
487th
518th
400th
390th
389th
441st
320th
333rd
Van Eck Sequence
540th
329th
364th
288th
782nd
401st
414th
304th
313th
484th
551st
609th
402nd
579th
119th
Zodiac Signs
319th
315th
339th
408th
351st
322nd
γ
109th
597th
116th
164th
390th
657th
1st
127th
658th
λ
131st
346th
828th
142nd
401st
785th
352nd
652nd
261st
951st
89th
1,337th
400th
π
1,281st
536th
413th
552nd
1,103rd
474th
501st
402nd
23rd
2,781st
617th
670th
393rd
571st
τ
867th
477th
384th
479th
751st
424th
453rd
346th
25th
1,553rd
504th
563rd
358th
513th
φ
952nd
925th
631st
926th
872nd
712th
438th
690th
77th
1,449th
988th
1,653rd
583rd
√2
1,115th
824th
756th
891st
1,032nd
766th
1,146th
982nd
256th
712th
116th
1,145th
871st
921st
447th
𝑒
1,213th
666th
639th
636th
994th
676th
790th
697th
15th
1,997th
834th
2,147th
386th
526th