12 Days of Christmas
821
99 Bottles of Beer
405
864
Abundant Numbers
749
Abundant Numbers (Long)
888
Arithmetic Numbers
874
Catalan Numbers
690
Christmas Trees
685
Collatz
887
Divisors
598
984
Emirp Numbers
634
Emirp Numbers (Long)
693
Evil Numbers
801
Evil Numbers (Long)
768
Farey Sequence
204
674
Fizz Buzz
976
Foo Fizz Buzz Bar
986
Fractions
686
Happy Numbers
632
Happy Numbers (Long)
712
ISBN
544
Kolakoski Sequence
590
Leap Years
770
Lucky Tickets
642
Niven Numbers
921
Niven Numbers (Long)
872
Number Spiral
247
Pangram Grep
909
Pascal’s Triangle
974
Pernicious Numbers
698
Pernicious Numbers (Long)
742
Prime Numbers
891
Prime Numbers (Long)
950
Quine
946
Reverse Polish Notation
781
Rule 110
401
453
Sierpiński Triangle
102
Tongue-twisters
498
Vampire Numbers
95
Van Eck Sequence
830
π
263
132
147