12 Days of Christmas
892
Abundant Numbers
757
Abundant Numbers (Long)
897
Arabic to Roman
874
Arithmetic Numbers
860
Ascending Primes
514
Catalan Numbers
888
Christmas Trees
705
Collatz
820
Day of Week
826
Divisors
900
Evil Numbers
980
Evil Numbers (Long)
949
Farey Sequence
523
Fibonacci
597932
Fizz Buzz
708941
Foo Fizz Buzz Bar
904
Fractions
944
Happy Numbers
719
Happy Numbers (Long)
817
ISBN
836
Leap Years
755
Look and Say
770
Lucky Numbers
702
Niven Numbers
781
Niven Numbers (Long)
863
Odious Numbers
849
Odious Numbers (Long)
845
Ordinal Numbers
893
Pangram Grep
861
Pascal’s Triangle
921
Pernicious Numbers
779
Pernicious Numbers (Long)
822
Prime Numbers
956
Prime Numbers (Long)
701
Quine
962945
Roman to Arabic
695
Tongue-twisters
713
Vampire Numbers
788