Abundant Numbers
785
Abundant Numbers (Long)
821
Christmas Trees
695
Collatz
853
Divisors
778
Emirp Numbers
599
Evil Numbers
703
Evil Numbers (Long)
702
Fibonacci
848
Fizz Buzz
768
Foo Fizz Buzz Bar
884
Fractions
690
Happy Numbers
707
Happy Numbers (Long)
688
Leap Years
868
Look and Say
853
Niven Numbers
941
Niven Numbers (Long)
860
Odious Numbers
585
Ordinal Numbers
807
Pascal’s Triangle
551
Prime Numbers
613
Recamán
616