Abundant Numbers
690
Abundant Numbers (Long)
764
Arabic to Roman
500
Catalan Numbers
733
Christmas Trees
540
Collatz
731
Day of Week
694
Divisors
857
Emirp Numbers
474
Emirp Numbers (Long)
538
Evil Numbers
800
Evil Numbers (Long)
788
Fibonacci
947
Fizz Buzz
855
Foo Fizz Buzz Bar
725
Fractions
614
Happy Numbers
522
Happy Numbers (Long)
656
Intersection
608
Kolakoski Sequence
810
Leap Years
782
Leyland Numbers
697
Lucky Numbers
642
Niven Numbers
733
Niven Numbers (Long)
806
Odious Numbers
833
Odious Numbers (Long)
820
Ordinal Numbers
660
Pangram Grep
726
Pascal’s Triangle
676
Pernicious Numbers
444
Pernicious Numbers (Long)
447
Prime Numbers
625
Prime Numbers (Long)
667
Recamán
724
Repeating Decimals
404
Reverse Polish Notation
523