12 Days of Christmas
849
Collatz
897
Divisors
833
Evil Numbers
535
Fibonacci
786
Fizz Buzz
986
Foo Fizz Buzz Bar
872
Happy Numbers
752
Happy Numbers (Long)
741
Kolakoski Sequence
533
Leap Years
908
Leyland Numbers
681
Look and Say
867
Niven Numbers
920
Pascal’s Triangle
730
Pernicious Numbers
434
Prime Numbers
895
Quine
864
Recamán
737
Tongue-twisters
764