12 Days of Christmas
950
Abundant Numbers
730
Abundant Numbers (Long)
800
Arabic to Roman
622
Arithmetic Numbers
746
Ascending Primes
454
Catalan Numbers
891
Christmas Trees
617
Collatz
744
Day of Week
660
Divisors
857
Evil Numbers
981
Evil Numbers (Long)
951
Farey Sequence
504
Fibonacci
602934
Fizz Buzz
713939
Foo Fizz Buzz Bar
929
Fractions
847
Happy Numbers
561
Happy Numbers (Long)
697
ISBN
656
Leap Years
756
Look and Say
781
Lucky Numbers
682
Niven Numbers
785
Niven Numbers (Long)
870
Odious Numbers
851
Odious Numbers (Long)
848
Ordinal Numbers
739
Pangram Grep
733
Pascalβs Triangle
903
Pernicious Numbers
782
Pernicious Numbers (Long)
813
Prime Numbers
957
Prime Numbers (Long)
702
Quine
967946
Roman to Arabic
528
Tongue-twisters
403
Vampire Numbers
588