99 Bottles of Beer
205
Abundant Numbers
679
Arabic to Roman
402
Catalan Numbers
603
Christmas Trees
611
Divisors
604
Emirp Numbers
400
Evil Numbers
714
Fibonacci
911
Fizz Buzz
891
Foo Fizz Buzz Bar
784
Fractions
471
Happy Numbers
428
Happy Numbers (Long)
534
Kolakoski Sequence
608
Leap Years
799
Leyland Numbers
560
Niven Numbers
847
Number Spiral
202
Odious Numbers
713
Ordinal Numbers
387
Pangram Grep
Pascal’s Triangle
508
Pernicious Numbers
593
Prime Numbers
643
Prime Numbers (Long)
680
Quine
947
Recamán
633
Roman to Arabic
298
Sierpiński Triangle
595
Smith Numbers
502
Spelling Numbers
211
Tongue-twisters
337
Van Eck Sequence
311