12 Days of Christmas
173
Abundant Numbers
497
Arabic to Roman
507
Collatz
843
Divisors
813
Emirp Numbers
450
Evil Numbers
836
Evil Numbers (Long)
816
Fibonacci
935
Fizz Buzz
382
Foo Fizz Buzz Bar
650
Fractions
488
Happy Numbers
510
Happy Numbers (Long)
503
Leap Years
744744
Niven Numbers
722
Niven Numbers (Long)
788
Odious Numbers
800
Odious Numbers (Long)
782
Pascal’s Triangle
863
Pernicious Numbers
349
Prime Numbers
688
Recamán
602
Smith Numbers
732
Van Eck Sequence
501
π
63
τ
62
φ
1134751