Abundant Numbers
793
Abundant Numbers (Long)
834
Christmas Trees
701
Collatz
875
Divisors
786
Emirp Numbers
602
Evil Numbers
705
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
863
Niven Numbers
954
Niven Numbers (Long)
874
Odious Numbers
588
Ordinal Numbers
809
Pascal’s Triangle
554
Prime Numbers
613
Recamán
626