12 Days of Christmas
328
99 Bottles of Beer
368
Abundant Numbers
686
Abundant Numbers (Long)
751
Arabic to Roman
208
Arithmetic Numbers
597
Arrows
401
Card Number Validation
345
Catalan Numbers
688
Christmas Trees
513
Collatz
668
Diamonds
296
Divisors
692
Emirp Numbers
448
Emirp Numbers (Long)
503
Evil Numbers
726
Evil Numbers (Long)
712
Farey Sequence
419
Fibonacci
787
Fizz Buzz
558
Foo Fizz Buzz Bar
456
Fractions
427
Happy Numbers
469
Intersection
569
ISBN
520
Leap Years
640
Leyland Numbers
571
Lucky Numbers
424
Morse Encoder
141
Niven Numbers
692
Niven Numbers (Long)
755
Odious Numbers
737
Odious Numbers (Long)
735
Ordinal Numbers
435
Pangram Grep
568
Pascal’s Triangle
355
Pernicious Numbers
660
Prime Numbers
622
Prime Numbers (Long)
578
Recamán
643
Rijndael S-box
109
Roman to Arabic
214
Scrambled Sort
529
Seven Segment
263
Sierpiński Triangle
128
Smith Numbers
531
Sudoku
190
Ten-pin Bowling
158
Tongue-twisters
338
United States
109
Vampire Numbers
414
Van Eck Sequence
630
√2
614