12 Days of Christmas
814
99 Bottles of Beer
648
Abundant Numbers
780
Arithmetic Numbers
733
839
ASCII Table
667
Card Number Validation
446
Christmas Trees
486
Collatz
697
750786841
Cubes
488
Diamonds
345
Divisors
889
Evil Numbers
546
Factorial Factorisation
549
Farey Sequence
626
Fibonacci
864
847
Fizz Buzz
761
835
Foo Fizz Buzz Bar
617675828
Fractions
535
Gray Code Decoder
579
706
Gray Code Encoder
758
Happy Numbers
424
Intersection
468
Inventory Sequence
306
ISBN
572
Kaprekar Numbers
671
Kolakoski Sequence
619578617
Leap Years
619
Leyland Numbers
719
Look and Say
527
Lucky Numbers
501
Niven Numbers
551
Odious Numbers
490
Ordinal Numbers
439
PalindromemordnilaP
582
Pangram Grep
583
Pascal’s Triangle
689
Pernicious Numbers
344
Prime Numbers
870
Recamán
789
732
Seven Segment
573
Sierpiński Triangle
334
Smith Numbers
552
Transpose Sentence
540
Trinomial Triangle
715
Ulam Sequence
784
United States
155
Van Eck Sequence
693