12 Days of Christmas
906
Abundant Numbers
785
Abundant Numbers (Long)
917
Arithmetic Numbers
911
Christmas Trees
836
Collatz
847
Diamonds
638
Divisors
822984
Evil Numbers
873
Evil Numbers (Long)
851
Factorial Factorisation
723
Fibonacci
935787
Fizz Buzz
944
977
Fractions
908
Intersection
803
Leap Years
831
Look and Say
713
Niven Numbers
866
Niven Numbers (Long)
889
Odious Numbers
852
Odious Numbers (Long)
849
Pascal’s Triangle
924
Pernicious Numbers
767
Prime Numbers
892
Prime Numbers (Long)
952
ROT13
917
Set
881
Smith Numbers
790
Star Wars GPT
811
Tic-tac-toe
733
λ
159