Abundant Numbers
706
ASCII Table
574
Catalan Numbers
870
Catalan’s Constant
449
Christmas Trees
615
Collatz
753
Diamonds
506606
Divisors
601911
Emirp Numbers
374561
Evil Numbers
754
Fibonacci
564932
Fizz Buzz
672847
Foo Fizz Buzz Bar
732722
Happy Numbers
545
Happy Numbers (Long)
677
Leap Years
828
Prime Numbers
891
Prime Numbers (Long)
638