12 Days of Christmas
12321115016815818218768171172179168136
165135174182179170199189180208115210188157176184127169176184907178180153178181194209
150174170202173188154172166198138175208185172
183159186
24 Game
1220132032
17292023211316
12231321201816246932
292627131324
182547141161822252828152128131315173511232014944294429234027
99 Bottles of Beer
17221617157291891817201720
17181719192125222123
292314
16
228
17
13
Abundant Numbers
83491239240288763222262341311339290386
23139223739027635744135932933063580368140218273136157231281800268211113258257331483252246321232385729231208363250399432591512259343293333292320
Abundant Numbers (Long)
169447435185149756566675475
48774485606990756559121408725395033
5067850503821505869915642594777859413564448088108103556187735467
Arabic to Roman
543
Arithmetic Numbers
563
2
571
889
3
Arrows
468
Ascending Primes
101123
148
245
559
128
205
ASCII Table
710
16
141
429
306
267
Billiards
227
brainfuck
794
Calendar
750
Card Number Validation
764
Catalan Numbers
19
10
672
15
44
Catalan’s Constant
92104120155
16813412314872112
651018610510776
847541113716116843
81103421971329222745731111291825582096611368627112557196551998967157916198584136208164190
Christmas Trees
810
136
72
737
111
75
Collatz
7183214716533844870178338918177607907206886376898136736586157367085306644381387507928642633926982817616
828890755672818645808627376863823456206908157162635944262122674
Continued Fractions
439
CSS Colors
336
Cubes
3964253953
48
4745513452
32493656416066597959408954273241332258526244537
58505772643451328533453444315349
855564
544153
Day of Week
618
717
DFA Simulator
508
Diamonds
327
73
41
78
490
60
33
Divisors
236936383984343405155613951
3857416557506956534819102792135521017436089132331648545670
324227549053024503866658888505881543052
Emirp Numbers
286
438
253
688
598
Emirp Numbers (Long)
72
66
740
673
Emojify
421
Evil Numbers
110987341336442461363471570486519446615
37357838262743261566358446841673955556197353472138228373434755394397122421380481759348365507352580889425320613360622582702753382605404513467518
Evil Numbers (Long)
84920171857817182523281925
16251534203139292021
63338152215
2225780191861919253616142115248722013251531303843192936221924
Factorial Factorisation
145
110
68
354
99
Farey Sequence
524145221362513111616181417
13181321152022161617
3021512166
16167921412
161416181411141016151611171019182222152221151820
Fibonacci
220444226733536977930242885911873750500847198762590887849527396439605392688574940961985385331760660094331150977941935792474815480680509276947596396237714853422506482938600291494459849897
Fizz Buzz
42216143107131818108139168140171129173
110181122198144176231169205181303301928710215353921195241,0001041387214412914523214610113410117263714798132120217183186224129169134166112168
Foo Fizz Buzz Bar
62114121276612161814191419
12211420151620181819
3320812159
12198681213
16161721
111513168221610151322192125161915181418
Forsyth–Edwards Notation
755
Fractions
685
503
Game of Life
267
Gijswijt’s Sequence
45
20
478
534
Gray Code Decoder
758
896
Gray Code Encoder
1,000
Happy Numbers
288
401
684
277
785
539
Happy Numbers (Long)
399
96
81
496
621
Hexdump
619
Hilbert Curve
152
313
Intersection
577
Inventory Sequence
20
12
612
761
ISBN
673
Jacobi Symbol
583
627
Kaprekar Numbers
376
385
557
311
Kolakoski Constant
22
5597118155
4311512414377992987312390100110125
1119816914421914140
93259341561349412868431071421363351947110478866995611575916110620257716599332133189129181
Kolakoski Sequence
3951152216
302629331052535952641253936444736352940684713253511
39107742262773233374748202119336582019312241362753384163271836
Leap Years
563
60
28
702
705
Levenshtein Distance
585
Leyland Numbers
150
157
707
839
ln 2
5490102125
8710597117
65
3467828955
6348142
14724
6374
134120424
4051
11614917618529914252528641
38137
67121913561275110189123149
Look and Say
7211026506550076486273824263
548543727869841036574
1329822516398
598387047542470807191111295845656554428574199101391346461133734076
Lucky Numbers
14
25
12
522
529
Lucky Tickets
450
443
Mandelbrot
9
502
Medal Tally
646
Minesweeper
488
Morse Decoder
347
Morse Encoder
549
Multitap Input
728
N Queens
668
54
235
571
82
Niven Numbers
842733366764867848905582891984716933771681843741868867914860896961
446778837978
7848971335967549551,000471860
978852898900916596689384860936771730559829968598683633978605339979650893960
Niven Numbers (Long)
213656
6788979
5124107812978
17113575
6996266
67811747598777485101117127814868
Number Spiral
194
318
393
256
Odious Numbers
108963319315438471349456551478504442593
35854736760041758063357545041072939547189349455138232340375771392407127414375476744340338474324560870410308564359624651694725377544381519436523
Odious Numbers (Long)
749181518591161669923292025
16251534203140282021
63338152214
2225796201762019263617141914258541812231531293741192635221824
Ordinal Numbers
750
PalindromemordnilaP
717
Pangram Grep
779
894
800
Partition Numbers
73
353
278
Pascal’s Triangle
275
71
21
591
107
750
Pernicious Numbers
485
364
136
400
494
Pernicious Numbers (Long)
2
2
442
619
Poker
292
Polyominoes
69
175
135
36
Prime Numbers
112924435361513553495465598554553464595
36963140361248253263562821849094965634236330402138138340614857403380111500406600786400373566389561667346276671408670679695846485545380608447547
Prime Numbers (Long)
3127686487
764911710
6971289131039
19133673
71088466
79101296859710541061110161681014969
Quine
1,000
5171,000692
923500442479
154323751,0005569189181,000
61418512441
1,000
7009589638656148931,0001,000449011,0006321,0008931,000818
284969344436
962682191
893730638314250
286
Recamán
66
56
646
67
Reverse Polish Notation
832
Reversi
502
Rijndael S-box
70
266
613
163
Roman to Arabic
473
ROT13
543
Rule 110
5
3
446
538
Scrambled Sort
704
634
Set
624
Seven Segment
654
Sierpiński Triangle
725
94
49
645
101
Smith Numbers
359
102
77
441
57
Spelling Numbers
702
Sudoku
539
Sudoku (Fill-in)
226
Taxicab Numbers
313
660
Ten-pin Bowling
492
Tic-tac-toe
434
Time Distance
501
Tongue-twisters
653687415590572
603252536497539515556
487588490499548507547545553694511671541469485549550487574517883534497464523537573651
501542506607499544513604483599629576691557533
522502530
Topological Sort
363
Tower of Hanoi
6
630
Transpose Sentence
380
Trinomial Triangle
20
631
United States
275
Vampire Numbers
359
170
260
370
98
Van Eck Sequence
614
23
22
632
767
Zeckendorf Representation
785
γ
262
124563548355
385268123281765506997610194100123514
10910054733919019947
9712465525183102536421251305563615545738654376103772076855166324102670578586588607148584544646
λ
198
545550555296283218299167200653149217180195200195
219180545531343286110
193459121525250225535146174190557545554576168534184222149413153553141289206665577551242599529567542285
π
53921021301049910610712562732566245669110063
725114711113315033
687527140115732150316275119147178193259453546410847158421507366522314783281117122123
τ
4019555921021311041041061061256373257635166911036510775511481101331503348697529140120756150406277119146179193279453556410847151421507366522414783281120121123
φ
15
589110313410689110961114951255525256787658
64401518712911023
605423144846816437575411614518019731924749521012713035149416651881464027886135117
√2
57939713310965107891095148254474456807859
66441451111319325
62812614462605148365550119144176196279549486281043213535141376652271414028083125127
𝑒
34149446465109866986941065159227463958818749906140105961261302442555523961018778431416793117128144266440498737132105391116066517710467221908190