Abundant Numbers
706
ASCII Table
574
Catalan Numbers
870
Catalan’s Constant
448
Christmas Trees
615
Collatz
753
Diamonds
506606
Divisors
601911
Emirp Numbers
374560
Evil Numbers
754
Fibonacci
565932
Fizz Buzz
671846
Foo Fizz Buzz Bar
730720
Happy Numbers
545
Happy Numbers (Long)
678
Leap Years
828
Prime Numbers
891
Prime Numbers (Long)
638