12 Days of Christmas
736
99 Bottles of Beer
644
Abundant Numbers
717
Abundant Numbers (Long)
852
Arabic to Roman
292
Arithmetic Numbers
717
Arrows
398
Catalan Numbers
691
Christmas Trees
592
Collatz
812
Diamonds
357
Divisors
748
Emirp Numbers
555
Emirp Numbers (Long)
618
Evil Numbers
727
Evil Numbers (Long)
714
Farey Sequence
508
Fibonacci
789
Fizz Buzz
613
Foo Fizz Buzz Bar
576
Fractions
502
Happy Numbers
607
Intersection
789
ISBN
668
Leap Years
642
Leyland Numbers
676
Lucky Numbers
444
Morse Encoder
211
Niven Numbers
698
Niven Numbers (Long)
764
Odious Numbers
739
Odious Numbers (Long)
738
Ordinal Numbers
560
Pangram Grep
674
Pascal’s Triangle
384
Pernicious Numbers
663
Prime Numbers
623
Prime Numbers (Long)
579
Recamán
718
Rijndael S-box
156
Roman to Arabic
284
Seven Segment
367
Sierpiński Triangle
100
Smith Numbers
726
Sudoku
262
Ten-pin Bowling
230
Tongue-twisters
609
United States
154
Vampire Numbers
568
Van Eck Sequence
667
√2
633