12 Days of Christmas
368
99 Bottles of Beer
269
Arabic to Roman
354
Christmas Trees
590
Cubes
422
Divisors
645
933
Emirp Numbers
474
Evil Numbers
873
Fibonacci
866
Fizz Buzz
692
Happy Numbers
523
Leap Years
706
Niven Numbers
744
Odious Numbers
784
Pascal’s Triangle
381
Pernicious Numbers
399
Prime Numbers
835
Quine
345478939317302586602944411179
Roman to Arabic
486
Sierpiński Triangle
595