Abundant Numbers
706
ASCII Table
574
Catalan Numbers
870
Catalan’s Constant
450
Christmas Trees
615
Collatz
753
Diamonds
505606
Divisors
601911
Emirp Numbers
374560
Evil Numbers
754
Fibonacci
564932
Fizz Buzz
671846
Foo Fizz Buzz Bar
729720
Happy Numbers
545
Happy Numbers (Long)
677
Leap Years
828
Prime Numbers
891
Prime Numbers (Long)
638