12 Days of Christmas
799
99 Bottles of Beer
471
Arabic to Roman
495
Christmas Trees
677
Cubes
563
Divisors
644
984
Emirp Numbers
584
Evil Numbers
872
Fibonacci
866
Fizz Buzz
758
Happy Numbers
674
Leap Years
706
Niven Numbers
746
Odious Numbers
783
Pascal’s Triangle
411
Pernicious Numbers
399
Prime Numbers
834
Quine
345491946319303591605946417857
Roman to Arabic
641
Sierpiński Triangle
621