99 Bottles of Beer
361
Abundant Numbers
718
Arabic to Roman
579
Catalan Numbers
620
Christmas Trees
713
Divisors
648
Emirp Numbers
504
Evil Numbers
727
Fibonacci
923
Fizz Buzz
983
Foo Fizz Buzz Bar
1,000
Fractions
570
Happy Numbers
564
Happy Numbers (Long)
649
Kolakoski Sequence
642
Leap Years
811
Leyland Numbers
676
Niven Numbers
863
Number Spiral
256
Odious Numbers
727
Ordinal Numbers
488
Pangram Grep
Pascal’s Triangle
563
Pernicious Numbers
606
Prime Numbers
656
Prime Numbers (Long)
698
Quine
969
Recamán
718
Roman to Arabic
407
Sierpiński Triangle
634
Smith Numbers
707
Spelling Numbers
377
Tongue-twisters
610
Van Eck Sequence
339