12 Days of Christmas
334
99 Bottles of Beer
368
Abundant Numbers
685
Abundant Numbers (Long)
751
Arabic to Roman
208
Arithmetic Numbers
607
Arrows
401
Card Number Validation
345
Catalan Numbers
688
Christmas Trees
513
Collatz
679
Diamonds
296
Divisors
692
Emirp Numbers
448
Emirp Numbers (Long)
511
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
576
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
449
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
533
Sudoku
191
Ten-pin Bowling
158
Tongue-twisters
339
United States
110
Vampire Numbers
415
Van Eck Sequence
630
√2
627