Abundant Numbers
706
Arabic to Roman
438
Christmas Trees
594
Diamonds
458
Divisors
837
Emirp Numbers
508
Evil Numbers
784
Fibonacci
932
Fizz Buzz
889
Happy Numbers
499
Leap Years
812
Leyland Numbers
731
Niven Numbers
740
Odious Numbers
781
Ordinal Numbers
620
Pangram Grep
635
Pascal’s Triangle
657
Pernicious Numbers
683
Prime Numbers
632
Quine
945
√2
610