12 Days of Christmas
212th
1,162nd1,338th480th
1,131st
277th
2,789th
890th
307th896th244th
178th
305th
1,224th
1,037th223rd
24 Game
523rd
99 Bottles of Beer
231st
1,401st968th631st
651st
440th
597th
667th500th184th
380th
477th
879th
Abundant Numbers
645th2,348th2,817th1,271st
1,132nd1,547th832nd
1,279th845th835th2,174th1,277th1,445th841st563rd1,782nd1,072nd
1,683rd951st
2,041st
2,417th
1,317th574th
2,430th
358th520th
667th2,906th
3,214th2,797th3,292nd2,259th
Abundant Numbers (Long)
1,009th1,715th1,318th498th
978th519th901st
271st
831st
1,200th701st399th
1,263rd
1,580th487th
1,625th
1,711th
1,073rd623rd
1,721st
256th
986th1,420th
530th1,725th1,139th
Arabic to Roman
453rd
333rd556th249th
269th
977th86th
68th
516th
734th
1,108th
380th
372nd
502nd610th
318th
Arithmetic Numbers
680th
790th395th
365th224th373rd
918th
144th
608th390th377th1,587th1,164th
1,095th200th
574th294th
1,337th
942nd814th582nd
785th
851st
38th1,296th
728th805th456th
497th
439th
758th
Arrows
509th
659th
976th
479th
587th
553rd507th
422nd
629th
524th
Ascending Primes
509th458th
484th
519th553rd495th
372nd541st395th
505th515th
61st
474th
533rd
328th
585th420th
347th
724th298th453rd
800th
603rd549th415th
ASCII Table
553rd
865th
738th416th528th
669th
274th
727th
479th
675th788th486th
191st
439th
458th
546th
brainfuck
881st
632nd
614th
891st
317th
Card Number Validation
649th
Catalan Numbers
1,282nd
482nd
1,175th1,312th747th931st704th666th917th
1,157th
511th
810th
186th
1,161st297th
413th
1,176th
722nd
448th
1,359th736th
661st
789th
Catalan’s Constant
1,174th1,098th943rd591st1,143rd358th461st341st
271st
578th485th508th1,169th1,154th570th1,280th527th693rd
311th1,517th
1,294th
785th850th574th
2nd
1,057th831st434th722nd1,384th1,128th1,337th583rd573rd1,223rd1,474th230th1,487th744th
533rd634th918th1,247th394th379th765th282nd
Christmas Trees
1,687th
851st
983rd1,116th852nd
1,615th
720th
667th387th
647th
1,303rd
1,073rd794th659th
837th
692nd
404th
139th
1,894th
462nd
641st529th
Collatz
409th
1,484th769th
967th110th565th
1,328th
665th1,006th
2,296th
793rd
2,084th
816th475th
2,448th1,033rd
380th
878th
1,479th
1,270th1,793rd1,990th
CSS Colors
524th
443rd
412th
726th
244th
573rd
277th
409th
2nd
279th
333rd
338th
619th
Cubes
208th
525th
507th
420th
533rd
232nd
143rd
Day of Week
815th738th
172nd617th765th589th
286th
879th667th605th425th461st327th
309th
931st648th
1,189th
572nd
775th147th
58th958th
1,109th835th
966th
732nd
782nd
DFA Simulator
Diamonds
961st
671st
665th
709th
427th
1,166th
823rd
710th
1,098th959th583rd
337th
1,544th1,588th
Divisors
2,145th3,464th1,595th1,774th
1,815th1,515th2,302nd
2,913th
2,286th
1,194th1,512th2,526th3,958th2,733rd
1,010th
3,278th
2,472nd1,227th
3,047th
1,075th1,413th
1,632nd
2,883rd1,857th
35th
2,003rd
305th
2,374th3,139th
995th
2,159th
Emirp Numbers
1,615th
1,588th830th
434th684th604th
577th302nd427th533rd782nd1,689th559th112th
365th
193rd
2,781st
819th473rd
1,613th1,612th
1,721st
122nd244th
187th690th1,651st
717th904th
551st
Emirp Numbers (Long)
601st
459th529th
532nd442nd466th
996th
463rd
573rd488th
262nd
404th
526th
900th
889th
202nd
784th
509th
661st
544th
Emojify
722nd
518th
415th
567th
337th
500th
589th
739th360th
Evil Numbers
2,301st1,534th2,550th1,587th
644th704th860th2,055th1,523rd842nd1,181st3,134th610th1,217th576th1,148th1,955th517th
2,678th801st3,087th1,840th
4,672nd1,686th2,204th1,586th440th
2,444th2,702nd2,598th1,568th2,470th2,314th1,659th
1,438th3,188th723rd43rd3,498th
1,442nd1,900th1,412th3,096th
2,194th1,819th1,842nd1,804th3,508th1,406th
Evil Numbers (Long)
1,141st1,416th694th708th
679th333rd629th1,409th552nd
662nd
449th565th364th
1,240th537th
1,588th503rd1,688th1,237th
1,135th
1,128th420th
1,316th1,519th1,339th575th975th
1,242nd
923rd1,636th1,551st39th1,795th
1,942nd1,051st900th1,800th
546th508th
567th1,890th802nd
Factorial Factorisation
1,054th946th916th1,023rd746th1,062nd968th926th
872nd
698th
1,102nd864th909th654th
987th777th
764th1,200th
901st
810th929th
1,141st
932nd791st
668th1,120th1,043rd1,113th882nd694th
1,185th791st1,180th825th
602nd727th836th755th
1,029th1,075th889th564th
Farey Sequence
569th
485th393rd
442nd355th380th
275th
669th682nd
546th
572nd
731st666th
794th
785th879th
61st746th
500th
700th
629th
620th
750th
Fibonacci
2,071st4,199th2,116th1,730th8,814th697th804th608th4,013th5,914th4,887th3,302nd5,086th3,596th1,826th1,064th3,853rd5,823rd1,090th
4,249th741st7,950th4,259th
3,859th5,602nd3,628th210th
6,588th6,180th2,330th501st2,383rd3,145th1,866th
3,059th343rd4,787th54th5,737th1,846th1,860th2,860th2,794th3,946th
2,356th2,296th2,012th
867th7,817th3,812th
Fizz Buzz
736th8,413th5,467th1,141st
1,251st3,544th715th
3,437th10,946th1,836th
4,710th2,953rd1,536th2,693rd
7,846th
4,571st
4,266th
6,623rd
7,322nd2,758th22nd
4,319th4,295th5,144th
8,167th
4,093rd1,792nd4,530th
753rd
2,180th4,601st5,185th5,042nd
3,964th8,518th
4,829th10,768th3,383rd4,268th
Foo Fizz Buzz Bar
202nd
1,294th383rd
1,276th1,434th937th
1,813th
240th
718th918th800th1,599th
945th
943rd
2,154th694th518th
1,836th791st1,130th
802nd
22nd
1,286th877th1,638th1,707th
826th2,301st
974th
922nd
Forsyth–Edwards Notation
203rd
566th641st573rd
582nd
650th
480th
473rd
687th
405th
469th
580th242nd
Fractions
1,034th
919th
591st
1,023rd
599th
690th
302nd
1,551st
1,412th
1,387th
373rd
1,068th
823rd
Game of Life
709th
674th
Gijswijt’s Sequence
205th404th
313th
475th479th
459th
487th
455th287th
363rd
495th
440th
277th
422nd
452nd
381st410th366th145th
Happy Numbers
968th1,573rd1,686th871st
796th893rd618th
558th270th793rd504th952nd1,270th575th169th657th424th
396th
2,080th
884th635th
1,928th1,748th
2,278th
2,079th
1,562nd
150th455th1,285th
240th1,557th1,449th
2,004th
931st1,073rd2,132nd802nd
Happy Numbers (Long)
1,000th1,211th514th453rd
703rd685th507th
1,265th
907th
1,437th677th435th1,343rd1,138th1,376th
157th
991st
600th892nd
1,069th
913th
644th
748th
267th937th
654th
420th
297th
529th1,358th788th
Hexdump
257th
333rd519th375th
567th
102nd
529th
433rd
63rd
404th
162nd
Intersection
810th
698th
590th
1,043rd
355th
153rd
1,108th
706th
449th
Inventory Sequence
919th
877th
873rd845th824th
917th
665th
681st805th
951st
605th
937th
934th
785th
ISBN
650th293rd
370th743rd387th
897th
393rd863rd
862nd
423rd
773rd
162nd218th
389th
836th
1,047th
103rd
1,134th
568th
484th
Jacobi Symbol
484th
501st418th429th
307th
416th
216th
442nd
388th
Kaprekar Numbers
315th
357th
439th
Kolakoski Constant
1,179th1,043rd871st594th1,508th443rd452nd374th
523rd
540th423rd497th1,160th1,103rd493rd1,089th489th691st
394th1,521st
1,212th
848th947th530th
1,371st
961st932nd559th743rd1,346th1,123rd1,301st504th575th1,203rd1,445th281st1,467th794th
719th626th824th1,269th541st407th757th326th
Kolakoski Sequence
1,101st
546th695th
696th831st559th
1,054th
260th
505th615th
203rd
605th487th
844th
904th1,031st
144th
418th
534th
740th447th
Leap Years
1,511th2,264th2,720th872nd
967th1,170th619th
1,581st3,218th2,049th
1,688th529th1,222nd2,355th1,553rd836th
3,308th1,021st
1,585th2,095th
1,991st449th
2,771st2,116th2,664th3,215th2,373rd3,133rd3,231st1,545th907th1,586th
1,234th3,160th3,831st3,409th2,143rd2,724th
2,008th2,337th831st
1,836th3,665th1,501st
Levenshtein Distance
738th
710th
220th
123rd
589th
542nd
378th
829th
Leyland Numbers
782nd
1,065th
758th523rd
1,044th
99th
430th
1,032nd822nd
707th
4th
1,114th
1,017th
ln 2
1,183rd1,119th999th780th1,244th675th695th657th
764th
327th857th728th1,232nd1,199th753rd1,309th768th921st
622nd1,509th
1,317th
971st1,015th758th
157th
1,067th874th842nd828th1,492nd1,172nd1,430th759th230th1,218th1,468th656th1,454th906th
700th788th959th1,295th736th676th812th643rd
Look and Say
1,136th
475th
770th730th
769th
603rd
616th
568th
721st
1,068th
551st
1,045th
810th518th
Lucky Numbers
760th
775th
554th
728th
30th
Lucky Tickets
Mahjong
127th
120th
Maze
Medal Tally
420th
492nd
450th
393rd
467th
469th
187th
Morse Decoder
422nd
742nd
535th
526th
539th
Morse Encoder
610th
788th
531st
445th
528th
Musical Chords
422nd389th
411th
432nd
N Queens
336th
316th
181st
Niven Numbers
1,621st1,462nd1,091st558th
1,192nd900th1,250th1,187th1,674th1,210th354th2,363rd261st846th684th742nd1,151st994th2,449th1,584th642nd
1,943rd302nd
2,634th1,141st1,586th60th
1,045th1,759th1,205th325th512th941st1,240th1,450th606th541st755th225th1,940th533rd1,413th1,951st373rd
2,177th881st730th2,642nd1,290th2,663rd663rd
Niven Numbers (Long)
1,651st1,589th472nd571st
739th830th832nd971st1,050th
670th1,511th1,608th1,098th722nd1,278th606th571st1,401st1,054th706th
1,783rd1,327th
1,520th1,654th1,208th1,061st
155th960th1,210th639th519th626th897th1,787th1,492nd1,101st440th196th1,370th173rd1,399th1,546th453rd
807th512th1,009th
799th1,731st1,155th
Number Spiral
345th
537th
240th438th368th
375th
369th243rd
320th401st
354th
387th
489th536th285th
325th
154th
276th
442nd
419th
Odious Numbers
2,293rd1,731st1,954th1,145th
399th638th672nd1,735th1,169th724th951st2,730th469th1,162nd435th832nd1,499th708th
2,237th552nd2,168th1,548th
3,744th695th1,472nd1,225th361st
2,002nd1,866th2,126th1,205th1,976th1,890th1,577th
1,544th2,968th605th41st2,904th
1,692nd1,754th1,116th2,737th
1,814th1,913th1,990th1,482nd3,011th1,045th
Odious Numbers (Long)
1,461st1,221st594th765th
435th310th457th1,117th384th
612th
411th578th330th
1,226th487th
1,436th465th1,365th1,042nd
560th
950th222nd
1,261st1,218th1,111th417th649th
1,141st
1,126th1,627th1,397th39th1,685th
1,779th966th824th1,652nd
495th908th
531st1,734th736th
Ordinal Numbers
581st
1,484th904th1,352nd
1,261st
759th
262nd
164th
1,604th
1,316th
Pangram Grep
684th
1,872nd1,296th1,709th
941st
528th1,647th
1,844th1,480th2,146th
1,295th
756th
1,763rd
1,596th1,016th908th
397th289th
1,033rd
1,663rd
120th
1,528th1,788th
2,372nd1,582nd
1,335th2,286th1,405th
Pascal’s Triangle
1,063rd
1,123rd
1,146th752nd1,094th
1,599th
920th
1,135th
692nd
1,185th
1,124th
1,752nd
933rd
550th
943rd
628th
1,644th
Pernicious Numbers
559th1,199th738th493rd2,440th245th321st515th1,030th1,107th968th305th1,110th223rd762nd661st714th644th951st917th1,141st607th350th1,115th1,707th2,985th539th1,237th1,158th157th
697th1,383rd903rd352nd469th842nd790th198th268th135th685th35th1,196th95th1,254th427th397th
1,920th2,050th379th547th1,739th826th1,736th580th
Pernicious Numbers (Long)
1,005th
908th952nd
845th550th692nd
378th
458th682nd585th673rd774th
207th
806th769th894th958th
75th982nd730th807th
478th613th
497th
612th888th810th1,171st
233rd
785th1,065th870th
1,028th
627th
Poker
209th
383rd
98th
Prime Numbers
1,248th2,237th1,624th672nd
1,272nd1,742nd1,416th1,308th1,354th879th429th2,447th2,545th1,859th1,237th583rd1,550th225th
1,005th1,605th1,433rd299th4,968th1st519th1,878th339th
1,577th1st
1,434th1,535th1,748th
1,051st1,763rd1,548th494th110th2,454th1,477th839th1,171st608th
2,557th1,133rd2,095th1,713th3,783rd1,865th
Prime Numbers (Long)
1,220th2,072nd985th587th
901st735th909th
1,096th
395th
1,145th754th
153rd
699th1,013th1,391st
1st
1,189th177th
701st1st
1,048th
1,230th1,976th
99th2,155th1,483rd721st923rd1,288th
1,158th
638th2,284th1,333rd
Proximity Grid
471st
QR Decoder
Quine
1st3,943rd258th
4,946th2,304th3,964th2,443rd4,334th
2,901st618th
1,847th
1,687th
1,532nd
1,541st
2,784th2,735th2,077th1,867th4,306th3,806th2,148th1,604th1,394th
2,663rd1,280th
1,813th1,743rd524th2,858th
723rd
5,071st4,021st453rd3,380th
1,710th3,274th
3,889th
2,495th
Recamán
467th
1,181st925th1,057th
587th
1,176th1,025th
488th
1,145th
629th
936th
Repeating Decimals
463rd
Reverse Polish Notation
628th
744th
294th
Reversi
242nd
337th
231st
323rd
347th
341st
300th354th319th162nd
Rijndael S-box
410th
556th407th489th
446th
278th
Rock-paper-scissors-Spock-lizard
147th
327th265th
708th
300th
364th
643rd
430th129th
Roman to Arabic
472nd
693rd655th603rd
280th
753rd
58th
583rd
439th
432nd463rd
41st
531st
458th
ROT13
677th
640th
207th
575th
60th
Rule 110
764th
784th
1,086th
999th
Scrambled Sort
417th
452nd
342nd453rd
Seven Segment
607th
686th809th594th
641st
412th
541st
304th
624th
531st494th
SI Units
223rd
236th
194th
Sierpiński Triangle
773rd
823rd804th
752nd926th750th
477th
428th
777th323rd
642nd
716th
281st
836th
719th
658th641st
Smith Numbers
766th
455th
156th
Spelling Numbers
446th
422nd
47th
320th
283rd
Star Wars Opening Crawl
282nd
232nd
225th
82nd
Sudoku
463rd
371st
178th
Sudoku (Fill-in)
383rd
380th
Ten-pin Bowling
499th
Tic-tac-toe
545th
539th
Time Distance
176th
293rd347th
469th
204th
332nd
Tongue-twisters
296th
199th
856th1,201st943rd
417th
248th
548th1,745th
1,381st
631st
627th
1,210th218th
239th
362nd
733rd
783rd
United States
774th
923rd
739th
Vampire Numbers
703rd
528th
679th625th258th536th
398th
347th
281st
261st627th
364th641st
310th
266th
Van Eck Sequence
961st
941st
742nd694th599th
910th
940th
1,054th
857th
1,017th
817th
935th
Zodiac Signs
546th
545th
γ
679th936th718th341st574th194th400th95th
212th
552nd436th440th1,212th1,115th128th1,136th414th865th
199th1,405th
1,226th
520th1,011th535th
1st
829th701st380th639th1,264th620th1,287th407th548th891st1,390th211th1,377th757th
500th659th812th736th308th255th342nd162nd
λ
935th1,393rd1,017th417th998th102nd261st56th
347th
460th234th367th1,842nd1,491st203rd1,540th197th1,332nd
73rd2,207th
1,683rd
665th1,236th353rd
2,120th
1,213th1,112th441st978th1,803rd1,146th1,985th270th433rd1,435th2,145th227th2,145th1,086th
787th894th1,309th1,051st385th166th1,463rd157th
π
791st2,519th2,062nd1,025th2,769th970th1,032nd854th
1,367th
812th1,561st1,290th2,666th2,603rd1,335th2,910th1,425th1,951st
797th3,658th
2,967th
2,031st2,152nd1,235th1,936th7th
2,302nd1,856th1,679th1,630th559th2,789th3,363rd1,405th769th2,709th3,560th533rd645th1,759th
1,186th1,508th1,879th2,854th1,371st951st1,967th891st
τ
1,588th1,542nd1,344th877th1,635th781st823rd743rd
977th
683rd1,036th953rd1,608th1,572nd966th1,714th1,013th1,268th
672nd2,058th
1,752nd
1,327th1,400th967th
75th
1,452nd1,284th1,124th1,102nd498th1,668th1,918th1,002nd652nd1,649th2,013th729th603rd1,202nd
900th1,052nd1,247th1,700th980th763rd1,284th728th
φ
1,683rd1,604th1,431st1,206th1,872nd1,042nd529th762nd
1,053rd
378th1,190th846th981st868th1,170th1,819th1,214th1,333rd842nd863rd2,226th1,067th1,833rd
1,399th1,060th834th
77th
1,536th1,374th1,272nd1,223rd1,124th1,769th839th1,195th12th1,714th2,195th1,044th679th1,309th
1,104th1,245th1,352nd1,026th1,147th1,100th1,411th1,012th
√2
1,950th1,851st1,672nd1,383rd2,227th1,191st1,040th759th
1,454th
562nd1,423rd1,000th1,089th2,057th1,316th2,092nd1,418th1,593rd
258th2,588th
2,111th
1,633rd627th1,357th
222nd
1,728th1,568th1,463rd1,432nd1,119th1,896th2,345th1,378th402nd2,002nd2,518th1,170th1,204th1,524th
1,261st1,391st1,603rd2,456th1,318th1,288th1,505th1,098th
𝑒
2,401st2,327th1,682nd1,386th2,553rd1,200th1,165th1,137th
1,098th
623rd1,385th1,291st2,149th2,078th1,313th2,434th1,378th1,736th
1,066th3,069th
2,560th
200th1,838th1,783rd1,312th
17th
1,992nd1,593rd1,551st1,469th1,078th2,287th2,811th1,309th460th2,198th2,954th1,659th926th1,624th
1,220th1,390th1,752nd2,377th1,330th1,205th1,909th1,182nd1,021st