12 Days of Christmas
866
99 Bottles of Beer
648
Abundant Numbers
779
Arithmetic Numbers
834
ASCII Table
665
Card Number Validation
444
Christmas Trees
510
Collatz
697
750785839
Cubes
486
Diamonds
354
Divisors
771
Evil Numbers
545
Factorial Factorisation
547
Farey Sequence
624
Fibonacci
864
846
Fizz Buzz
761
834
Foo Fizz Buzz Bar
617675827
Fractions
534
Gray Code Decoder
575
706
Gray Code Encoder
811
Happy Numbers
424
Intersection
468
Inventory Sequence
305
ISBN
572
Kaprekar Numbers
669
Kolakoski Sequence
618578624
Leap Years
619
Leyland Numbers
719
Look and Say
526
Lucky Numbers
500
Niven Numbers
529
Odious Numbers
490
Ordinal Numbers
439
PalindromemordnilaP
582
Pangram Grep
582
Pascal’s Triangle
688
Pernicious Numbers
343
Prime Numbers
870
Recamán
789
730
Seven Segment
555
Sierpiński Triangle
335
Smith Numbers
554
Transpose Sentence
553
Trinomial Triangle
713
Ulam Sequence
813
United States
155
Van Eck Sequence
692