99 Bottles of Beer
205
Abundant Numbers
678
Arabic to Roman
402
Catalan Numbers
603
Christmas Trees
610
Divisors
604
Emirp Numbers
400
Evil Numbers
714
Fibonacci
911
Fizz Buzz
891
Foo Fizz Buzz Bar
783
Fractions
470
Happy Numbers
428
Happy Numbers (Long)
534
Kolakoski Sequence
608
Leap Years
799
Leyland Numbers
559
Niven Numbers
846
Number Spiral
201
Odious Numbers
712
Ordinal Numbers
387
Pangram Grep
Pascal’s Triangle
508
Pernicious Numbers
592
Prime Numbers
643
Prime Numbers (Long)
679
Quine
946
Recamán
633
Roman to Arabic
298
Sierpiński Triangle
595
Smith Numbers
502
Spelling Numbers
213
Tongue-twisters
337
Van Eck Sequence
310