12 Days of Christmas
757
24 Game
283
99 Bottles of Beer
598
Abundant Numbers
591
Abundant Numbers (Long)
693
Arabic to Roman
449
Arithmetic Numbers
627
Arrows
287
Ascending Primes
322
ASCII Table
459
Card Number Validation
467
Catalan Numbers
493
Catalan’s Constant
115
Christmas Trees
617
Collatz
684609696
803720833745
757
CSS Colors
171
Cubes
363
Day of Week
802
Diamonds
346
Divisors
745
690551557891
Emirp Numbers
405
Emirp Numbers (Long)
452
Emojify
263294
Evil Numbers
714
Evil Numbers (Long)
702
Factorial Factorisation
323
Farey Sequence
439
Fibonacci
935
Fizz Buzz
715
854668915368
Foo Fizz Buzz Bar
710
890663
Forsyth–Edwards Notation
424
Fractions
616
Happy Numbers
447
Happy Numbers (Long)
511
Hexdump
399
523
Intersection
452
Inventory Sequence
507
ISBN
622
Jacobi Symbol
426
Kolakoski Constant
67
Kolakoski Sequence
25
Leap Years
597
Leyland Numbers
568
ln 2
51
Look and Say
667
Lucky Numbers
571
Lucky Tickets
359
Maze
192167244
Morse Decoder
99
Morse Encoder
107
N Queens
362
Niven Numbers
646
Niven Numbers (Long)
709
Number Spiral
209
Odious Numbers
740
Odious Numbers (Long)
726
Ordinal Numbers
498619460529
PalindromemordnilaP
737
Pangram Grep
746
Partition Numbers
259
Pascal’s Triangle
379
Pernicious Numbers
332
Pernicious Numbers (Long)
418
Polyominoes
178
Prime Numbers
405
Prime Numbers (Long)
433
Quine
947858
Recamán
538
Repeating Decimals
317
Rijndael S-box
90
Rock-paper-scissors-Spock-lizard
266
Roman to Arabic
503
ROT13
435
Seven Segment
352
Sierpiński Triangle
430
Smith Numbers
448
Spelling Numbers
284
Sudoku
295
Sudoku (Fill-in)
154
Time Distance
428
459
Tongue-twisters
496
Transpose Sentence
523
266648
United States
117
Vampire Numbers
355
Van Eck Sequence
608
Zeckendorf Representation
377
470733505
γ
75
λ
147
π
63
τ
63
φ
601
√2
48
𝑒
46