Abundant Numbers
739
Arabic to Roman
616
Christmas Trees
686
Diamonds
552
Divisors
905
Emirp Numbers
629
Evil Numbers
786
Fibonacci
935
Fizz Buzz
977
Happy Numbers
646
Leap Years
815
Leyland Numbers
866
Niven Numbers
747
Odious Numbers
784
Ordinal Numbers
774
Pangram Grep
754
Pascal’s Triangle
712
Pernicious Numbers
686
Prime Numbers
633
Quine
944
√2
617