Abundant Numbers
793
Abundant Numbers (Long)
833
Christmas Trees
701
Collatz
875
Divisors
785
Emirp Numbers
601
Evil Numbers
704
Evil Numbers (Long)
704
Fibonacci
852
Fizz Buzz
771
Foo Fizz Buzz Bar
889
Fractions
687
Happy Numbers
713
Happy Numbers (Long)
697
Leap Years
893
Look and Say
862
Niven Numbers
954
Niven Numbers (Long)
874
Odious Numbers
588
Ordinal Numbers
809
Pascal’s Triangle
554
Prime Numbers
613
Recamán
626