Abundant Numbers
739
ASCII Table
728
Catalan Numbers
874
Catalan’s Constant
533
Christmas Trees
710
Collatz
835
Diamonds
513731
Divisors
607984
Emirp Numbers
524694
Evil Numbers
755
Fibonacci
566935
Fizz Buzz
675929
Foo Fizz Buzz Bar
736910
Happy Numbers
706
Happy Numbers (Long)
804
Leap Years
831
Prime Numbers
892
Prime Numbers (Long)
640