12 Days of Christmas
432
99 Bottles of Beer
726
Abundant Numbers
814
Abundant Numbers (Long)
864
Arabic to Roman
466
Arithmetic Numbers
875
Arrows
644
ASCII Table
607
Billiards
549
brainfuck
558
Card Number Validation
571
Catalan Numbers
953
Catalan’s Constant
294
Christmas Trees
654
Collatz
917
CSS Colors
603
Cubes
283
Diamonds
560
Divisors
831
Emirp Numbers
377
Emirp Numbers (Long)
461
Emojify
463
Evil Numbers
661
Evil Numbers (Long)
684
Farey Sequence
670
Fibonacci
971
Fizz Buzz
949
Foo Fizz Buzz Bar
868
Forsyth–Edwards Notation
623
Fractions
643
Happy Numbers
646
Happy Numbers (Long)
608
Intersection
795
Inventory Sequence
684
ISBN
725
Jacobi Symbol
615
Kolakoski Constant
480
Kolakoski Sequence
426
Leap Years
854
Levenshtein Distance
528
Leyland Numbers
642
ln 2
828
Look and Say
612
Lucky Numbers
667
Lucky Tickets
404
Morse Decoder
523
Morse Encoder
365
Niven Numbers
1,000
Niven Numbers (Long)
943
Number Spiral
450
Odious Numbers
673
Odious Numbers (Long)
696
Ordinal Numbers
776
Pangram Grep
573
Pascal’s Triangle
571
Pernicious Numbers
531
Pernicious Numbers (Long)
657
Prime Numbers
923
Prime Numbers (Long)
731
Proximity Grid
449
Quine
893
Recamán
573
Reverse Polish Notation
849
Rijndael S-box
502
Rock-paper-scissors-Spock-lizard
348
Roman to Arabic
622
Rule 110
453
Seven Segment
553
Sierpiński Triangle
423
Smith Numbers
555
Spelling Numbers
454
Tongue-twisters
984
United States
227
Vampire Numbers
90
Van Eck Sequence
754
λ
500
π
811
τ
805
φ
439
√2
481
𝑒
450