12 Days of Christmas
893
Abundant Numbers
756
Abundant Numbers (Long)
882
Arabic to Roman
874
Arithmetic Numbers
860
Ascending Primes
515
Catalan Numbers
888
Christmas Trees
705
Collatz
820
Day of Week
826
Divisors
900
Evil Numbers
980
Evil Numbers (Long)
949
Farey Sequence
573
Fibonacci
597932
Fizz Buzz
710941
Foo Fizz Buzz Bar
906
Fractions
945
Happy Numbers
719
Happy Numbers (Long)
817
ISBN
835
Leap Years
755
Look and Say
769
Lucky Numbers
703
Niven Numbers
780
Niven Numbers (Long)
863
Odious Numbers
849
Odious Numbers (Long)
844
Ordinal Numbers
895
Pangram Grep
861
Pascal’s Triangle
921
Pernicious Numbers
779
Pernicious Numbers (Long)
821
Prime Numbers
956
Prime Numbers (Long)
700
Quine
962945
Roman to Arabic
695
Tongue-twisters
713
Vampire Numbers
792