Abundant Numbers
785
Abundant Numbers (Long)
821
Christmas Trees
695
Collatz
853
Divisors
778
Emirp Numbers
527
Evil Numbers
703
Evil Numbers (Long)
702
Fibonacci
848
Fizz Buzz
768
Foo Fizz Buzz Bar
883
Fractions
690
Happy Numbers
583
Happy Numbers (Long)
688
Leap Years
867
Look and Say
853
Niven Numbers
941
Niven Numbers (Long)
860
Odious Numbers
585
Ordinal Numbers
806
Pascal’s Triangle
551
Prime Numbers
613
Recamán
616