Abundant Numbers
703
Abundant Numbers (Long)
821
Arabic to Roman
685
Catalan Numbers
710
Christmas Trees
606
Collatz
789
Day of Week
834
Divisors
886
Emirp Numbers
564
Emirp Numbers (Long)
627
Evil Numbers
784
Evil Numbers (Long)
767
Fibonacci
932
Fizz Buzz
926
Foo Fizz Buzz Bar
896
Fractions
702
Happy Numbers
656
Happy Numbers (Long)
746
Intersection
799
Kolakoski Sequence
798
Leap Years
768
Leyland Numbers
791
Lucky Numbers
642
Niven Numbers
715
Niven Numbers (Long)
780
Odious Numbers
814
Odious Numbers (Long)
794
Ordinal Numbers
778
Pangram Grep
830
Pascal’s Triangle
709
Pernicious Numbers
433
Pernicious Numbers (Long)
439
Prime Numbers
613
Prime Numbers (Long)
647
Recamán
778
Repeating Decimals
534
Reverse Polish Notation
687