Abundant Numbers
681
Abundant Numbers (Long)
688
Arrows
592
Collatz
934
Divisors
635
Emirp Numbers
550
Emirp Numbers (Long)
508
Evil Numbers
755
Evil Numbers (Long)
788
Factorial Factorisation
78
Fizz Buzz
500
Foo Fizz Buzz Bar
455
Happy Numbers
686
Happy Numbers (Long)
108
Leap Years
58
Niven Numbers
733
Odious Numbers
769
Odious Numbers (Long)
788
Pernicious Numbers
769
Prime Numbers
690
Prime Numbers (Long)
688
Quine
912
Sierpiński Triangle
134
Tongue-twisters
517