12 Days of Christmas
906
Abundant Numbers
784
Abundant Numbers (Long)
930
Arithmetic Numbers
921
Christmas Trees
835
Collatz
912
Diamonds
638
Divisors
799984
Evil Numbers
872
Evil Numbers (Long)
850
Factorial Factorisation
715
Fibonacci
934786
Fizz Buzz
944
977
Fractions
907
Intersection
802
Leap Years
831
Look and Say
712
Niven Numbers
866
Niven Numbers (Long)
888
Odious Numbers
851
Odious Numbers (Long)
848
Pascalβs Triangle
923
Pernicious Numbers
766
Prime Numbers
892
Prime Numbers (Long)
951
ROT13
912
Set
872
Smith Numbers
789
Tic-tac-toe
729
Ξ»
159