12 Days of Christmas
955
Abundant Numbers
742
Abundant Numbers (Long)
821
Arabic to Roman
638
Arithmetic Numbers
765
Ascending Primes
472
Catalan Numbers
917
Christmas Trees
628
Collatz
760
Day of Week
687
Divisors
871
Evil Numbers
1,000
Evil Numbers (Long)
976
Farey Sequence
523
Fibonacci
625947
Fizz Buzz
733946
Foo Fizz Buzz Bar
943
Fractions
873
Happy Numbers
571
Happy Numbers (Long)
718
ISBN
676
Leap Years
768
Look and Say
800
Lucky Numbers
703
Niven Numbers
800
Niven Numbers (Long)
893
Odious Numbers
870
Odious Numbers (Long)
872
Ordinal Numbers
759
Pangram Grep
753
Pascal’s Triangle
926
Pernicious Numbers
800
Pernicious Numbers (Long)
836
Prime Numbers
976
Prime Numbers (Long)
721
Quine
1,000969
Roman to Arabic
544
Tongue-twisters
401
Vampire Numbers
605