12 Days of Christmas
378
99 Bottles of Beer
301494
Abundant Numbers
719
Abundant Numbers (Long)
788
Arithmetic Numbers
746
Catalan Numbers
690
Christmas Trees
596
Collatz
744
Divisors
598933
Emirp Numbers
514
Emirp Numbers (Long)
577
Evil Numbers
801
Evil Numbers (Long)
768
Farey Sequence
204595
Fizz Buzz
891
Foo Fizz Buzz Bar
783
Fractions
584
Happy Numbers
490
Happy Numbers (Long)
604
ISBN
425
Kolakoski Sequence
590
Leap Years
770
Lucky Tickets
487
Niven Numbers
918
Niven Numbers (Long)
870
Number Spiral
201
Pangram Grep
771
Pascal’s Triangle
903
Pernicious Numbers
698
Pernicious Numbers (Long)
728
Prime Numbers
891
Prime Numbers (Long)
951
Quine
946
Reverse Polish Notation
567
Rule 110
390383
Sierpiński Triangle
131
Tongue-twisters
280
Vampire Numbers
70
Van Eck Sequence
787
π
236132146