Abundant Numbers
707
Abundant Numbers (Long)
839
Arabic to Roman
683
Catalan Numbers
713
Christmas Trees
610
Collatz
853
Day of Week
830
Divisors
890
Emirp Numbers
574
Emirp Numbers (Long)
628
Evil Numbers
785
Evil Numbers (Long)
768
Fibonacci
934
Fizz Buzz
929
Foo Fizz Buzz Bar
899
Fractions
700
Happy Numbers
660
Happy Numbers (Long)
751
Intersection
801
Kolakoski Sequence
795
Leap Years
770
Leyland Numbers
796
Lucky Numbers
658
Niven Numbers
721
Niven Numbers (Long)
787
Odious Numbers
816
Odious Numbers (Long)
796
Ordinal Numbers
788
Pangram Grep
834
Pascal’s Triangle
711
Pernicious Numbers
434
Pernicious Numbers (Long)
442
Prime Numbers
613
Prime Numbers (Long)
648
Recamán
784
Repeating Decimals
531
Reverse Polish Notation
683