12 Days of Christmas
339
99 Bottles of Beer
368
Abundant Numbers
688
Abundant Numbers (Long)
755
Arabic to Roman
208
Arithmetic Numbers
621
Arrows
403
Card Number Validation
346
Catalan Numbers
691
Christmas Trees
516
Collatz
681
Diamonds
298
Divisors
709
Emirp Numbers
450
Emirp Numbers (Long)
514
Evil Numbers
727
Evil Numbers (Long)
714
Farey Sequence
448
Fibonacci
789
Fizz Buzz
559
Foo Fizz Buzz Bar
458
Fractions
427
Happy Numbers
471
Intersection
580
ISBN
522
Leap Years
642
Leyland Numbers
575
Lucky Numbers
428
Morse Encoder
144
Niven Numbers
696
Niven Numbers (Long)
762
Odious Numbers
739
Odious Numbers (Long)
738
Ordinal Numbers
456
Pangram Grep
571
Pascal’s Triangle
356
Pernicious Numbers
663
Prime Numbers
623
Prime Numbers (Long)
579
Recamán
648
Rijndael S-box
112
Roman to Arabic
215
Scrambled Sort
533
Seven Segment
268
Sierpiński Triangle
129
Smith Numbers
534
Sudoku
191
Ten-pin Bowling
160
Tongue-twisters
339
United States
112
Vampire Numbers
420
Van Eck Sequence
632
√2
630