Abundant Numbers
709
ASCII Table
574
Catalan Numbers
874
Catalan’s Constant
449
Christmas Trees
618
Collatz
755
Diamonds
510610
Divisors
607933
Emirp Numbers
377563
Evil Numbers
755
Fibonacci
566935
Fizz Buzz
673848
Foo Fizz Buzz Bar
732723
Happy Numbers
548
Happy Numbers (Long)
682
Leap Years
831
Prime Numbers
892
Prime Numbers (Long)
639