Abundant Numbers
790
Abundant Numbers (Long)
829
Christmas Trees
698
Collatz
871
Divisors
785
Emirp Numbers
530
Evil Numbers
704
Evil Numbers (Long)
704
Fibonacci
852
Fizz Buzz
769
Foo Fizz Buzz Bar
882
Fractions
687
Happy Numbers
588
Happy Numbers (Long)
695
Leap Years
892
Look and Say
862
Niven Numbers
949
Niven Numbers (Long)
870
Odious Numbers
588
Ordinal Numbers
805
Pascal’s Triangle
554
Prime Numbers
613
Recamán
624