12 Days of Christmas
378
99 Bottles of Beer
306494
Abundant Numbers
719
Abundant Numbers (Long)
789
Arithmetic Numbers
759
Catalan Numbers
691
Christmas Trees
597
Collatz
745
Divisors
598933
Emirp Numbers
515
Emirp Numbers (Long)
578
Evil Numbers
801
Evil Numbers (Long)
769
Farey Sequence
204596
Fizz Buzz
891
Foo Fizz Buzz Bar
783
Fractions
584
Happy Numbers
491
Happy Numbers (Long)
605
ISBN
425
Kolakoski Sequence
579
Leap Years
770
Lucky Tickets
488
Niven Numbers
919
Niven Numbers (Long)
871
Number Spiral
202
Pangram Grep
772
Pascal’s Triangle
903
Pernicious Numbers
698
Pernicious Numbers (Long)
730
Prime Numbers
892
Prime Numbers (Long)
952
Quine
946
Reverse Polish Notation
568
Rule 110
391383
Sierpiński Triangle
131
Tongue-twisters
277
Vampire Numbers
70
Van Eck Sequence
788
π
236132146