12 Days of Christmas
814
99 Bottles of Beer
651
Abundant Numbers
814
Abundant Numbers (Long)
864
Arabic to Roman
492
Arithmetic Numbers
875
Arrows
458
ASCII Table
714
Billiards
651
brainfuck
678
Card Number Validation
571
Catalan Numbers
953
Catalan’s Constant
294
Christmas Trees
654
Collatz
917
CSS Colors
669
Cubes
371
Diamonds
560
Divisors
831
Emirp Numbers
429
Emirp Numbers (Long)
461
Emojify
460
Evil Numbers
661
Evil Numbers (Long)
684
Farey Sequence
670
Fibonacci
971
Fizz Buzz
949
Foo Fizz Buzz Bar
868
Forsyth–Edwards Notation
629
Fractions
643
Happy Numbers
785
Happy Numbers (Long)
608
Intersection
855
Inventory Sequence
684
ISBN
725
Jacobi Symbol
615
Kolakoski Constant
480
Kolakoski Sequence
426
Leap Years
854
Levenshtein Distance
606
Leyland Numbers
642
ln 2
828
Look and Say
612
Lucky Numbers
667
Lucky Tickets
413
Morse Decoder
648
Morse Encoder
417
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
530
Quine
893
Recamán
573
Reverse Polish Notation
849
Rijndael S-box
639
Rock-paper-scissors-Spock-lizard
315
Roman to Arabic
622
Rule 110
457
Seven Segment
624
Sierpiński Triangle
434
Smith Numbers
555
Spelling Numbers
740
Tongue-twisters
882
United States
160
Vampire Numbers
100
Van Eck Sequence
754
λ
674
π
811
τ
805
φ
439
√2
481
𝑒
450