Abundant Numbers
721
ASCII Table
585
Catalan Numbers
898
Catalan’s Constant
462
Christmas Trees
628
Collatz
770
Diamonds
549622
Divisors
637947
Emirp Numbers
400573
Evil Numbers
769
Fibonacci
588947
Fizz Buzz
690855
Foo Fizz Buzz Bar
769733
Happy Numbers
558
Happy Numbers (Long)
701
Leap Years
843
Prime Numbers
909
Prime Numbers (Long)
657