12 Days of Christmas
469
99 Bottles of Beer
690
Abundant Numbers
869
Abundant Numbers (Long)
968
Arabic to Roman
540
Arithmetic Numbers
957
Arrows
526
ASCII Table
549
Card Number Validation
565
Catalan Numbers
388
Christmas Trees
760
Collatz
591818
Continued Fractions
826
CSS Colors
175
Day of Week
652
Divisors
953
Emirp Numbers
384
Emirp Numbers (Long)
625
Emojify
242
Evil Numbers
816
Evil Numbers (Long)
902
Factorial Factorisation
649
Farey Sequence
623
Fibonacci
500
980
Fizz Buzz
841
Foo Fizz Buzz Bar
812
Fractions
701
Happy Numbers
390
Happy Numbers (Long)
667
Intersection
712
ISBN
661
Kaprekar Numbers
178
Kolakoski Constant
107
Kolakoski Sequence
288
Leap Years
978
Levenshtein Distance
442
Leyland Numbers
479
ln 2
425640
Minesweeper
412
Morse Encoder
278
Multitap Input
588
N Queens
527
Niven Numbers
846
Niven Numbers (Long)
1,000
Number Spiral
357
Odious Numbers
837
Odious Numbers (Long)
923
Ordinal Numbers
750
Pangram Grep
765
Partition Numbers
599822
Pascal’s Triangle
680
Pernicious Numbers
627
Pernicious Numbers (Long)
789
Prime Numbers
854
Prime Numbers (Long)
1,000
Quine
914
Recamán
708
Reverse Polish Notation
539
Rijndael S-box
226
Rock-paper-scissors-Spock-lizard
470
Roman to Arabic
467
ROT13
492
Set
622
Seven Segment
642
Smith Numbers
617
Tic-tac-toe
534
Time Distance
662
Tongue-twisters
398
Transpose Sentence
489
Trinomial Triangle
43
United States
102242
Vampire Numbers
395
Van Eck Sequence
624
π
75
τ
77
φ
659
√2
893
𝑒
519