12 Days of Christmas
362
99 Bottles of Beer
401
Abundant Numbers
748
700
Arabic to Roman
379
Christmas Trees
491
Diamonds
378
Divisors
771
Emirp Numbers
399
Evil Numbers
800
Fibonacci
837
Fizz Buzz
546
Happy Numbers
320
Leap Years
717
Niven Numbers
880
Odious Numbers
800
Pascalβs Triangle
481
Pernicious Numbers
702
Prime Numbers
597
Quine
969
Roman to Arabic
320
Seven Segment
455
Spelling Numbers
225
Ο
276