12 Days of Christmas
572
99 Bottles of Beer
633
Abundant Numbers
698
Arithmetic Numbers
622
839
ASCII Table
667
Card Number Validation
446
Christmas Trees
486
Collatz
697
656786841
Cubes
479
Diamonds
345
Divisors
889
Evil Numbers
491
Factorial Factorisation
549
Farey Sequence
626
Fibonacci
864
847
Fizz Buzz
761
835
Foo Fizz Buzz Bar
491673824
Fractions
535
Gray Code Decoder
579
706
Gray Code Encoder
758
Happy Numbers
257
Intersection
468
Inventory Sequence
306
ISBN
572
Kaprekar Numbers
671
Kolakoski Sequence
607578617
Leap Years
618
Leyland Numbers
612
Look and Say
527
Lucky Numbers
501
Niven Numbers
539
Odious Numbers
442
Ordinal Numbers
439
PalindromemordnilaP
582
Pangram Grep
583
Pascal’s Triangle
689
Pernicious Numbers
344
Prime Numbers
682
Recamán
712
732
Seven Segment
550
Sierpiński Triangle
357
Smith Numbers
552
Transpose Sentence
540
Trinomial Triangle
715
Ulam Sequence
784
United States
154
Van Eck Sequence
693