12 Days of Christmas
912
Abundant Numbers
761
Abundant Numbers (Long)
902
Arabic to Roman
874
Arithmetic Numbers
911
Ascending Primes
522
Catalan Numbers
892
Christmas Trees
709
Collatz
888
Day of Week
823
Divisors
905
Evil Numbers
981
Evil Numbers (Long)
951
Farey Sequence
572
Fibonacci
602934
Fizz Buzz
718945
Foo Fizz Buzz Bar
909
Fractions
943
Happy Numbers
723
Happy Numbers (Long)
822
ISBN
840
Leap Years
757
Look and Say
773
Lucky Numbers
708
Niven Numbers
787
Niven Numbers (Long)
872
Odious Numbers
852
Odious Numbers (Long)
848
Ordinal Numbers
907
Pangram Grep
865
Pascalβs Triangle
923
Pernicious Numbers
782
Pernicious Numbers (Long)
828
Prime Numbers
957
Prime Numbers (Long)
702
Quine
967946
Roman to Arabic
698
Tongue-twisters
716
Vampire Numbers
796