12 Days of Christmas
665
693
731
24 Game
21
99 Bottles of Beer
418384369
382
Abundant Numbers
607620735
684
Abundant Numbers (Long)
801633824
748
Alphabetic Numbers
208
Arabic to Roman
322
Arithmetic Numbers
728
Arrows
184199203
244
Ascending Primes
455
ASCII Table
645511438
497
Calendar
794355279
Card Number Validation
276290
265
Catalan Numbers
49
12
458
Catalan’s Constant
140
Christmas Trees
734129
Collatz
828663821
699
Continued Fractions
702452499
CSS Colors
200
Cubes
56
Day of Week
574380
Diamonds
494
Divisors
864676761
Emirp Numbers
385434427
366
Emirp Numbers (Long)
586
Emojify
245
Evil Numbers
471505537
740
Evil Numbers (Long)
472463543
Factorial Factorisation
495408414
Farey Sequence
531
643
Fibonacci
866769907
367
700932
Fizz Buzz
788783839
321
Foo Fizz Buzz Bar
673502656
Forsyth–Edwards Notation
315188
Fractions
509
Gijswijt’s Sequence
85
Gray Code Decoder
482601
Gray Code Encoder
304437
Happy Numbers
459459457
Happy Numbers (Long)
619
Hilbert Curve
268
Intersection
345574494
225
Inventory Sequence
459389
303
ISBN
541
Jacobi Symbol
438427
520
Kaprekar Numbers
149
Kolakoski Constant
138
Kolakoski Sequence
61
Leap Years
601731773
473
755
Leyland Numbers
291
505
ln 2
472467
121
729
Look and Say
185
Lucky Numbers
562494
469
Lucky Tickets
434
Mandelbrot
387
Medal Tally
279
353
Morse Decoder
213
84
Morse Encoder
232
Multitap Input
244198
282
N Queens
1007288
Niven Numbers
761330402
692
Niven Numbers (Long)
657554
561
Number Spiral
414
Odious Numbers
488420452
592
Odious Numbers (Long)
534295320
Ordinal Numbers
458
PalindromemordnilaP
516377
Pangram Grep
496404477
Partition Numbers
577438
Pascal’s Triangle
538623734
Pernicious Numbers
520302331
Pernicious Numbers (Long)
566
Polyominoes
65
Prime Numbers
628623750
284
Prime Numbers (Long)
741642777
Quine
572479509
738
Recamán
524629736
Rijndael S-box
181119
205
Rock-paper-scissors-Spock-lizard
446301
Roman to Arabic
388
ROT13
460
Set
393353396
Seven Segment
276
Sierpiński Triangle
11694108
Smith Numbers
472398506
Sudoku
459192
Sudoku (Fill-in)
258175
198
Taxicab Numbers
723
440
299
Tic-tac-toe
241172241
236
Tongue-twisters
592
Tower of Hanoi
17
Transpose Sentence
309
517
Trinomial Triangle
422342
United States
130
Vampire Numbers
248
210
Van Eck Sequence
465
γ
612780
λ
495
205
π
477532197
250
τ
359384266
φ
503494544
642
√2
479506520
618
𝑒
585532562
561