12 Days of Christmas
354
99 Bottles of Beer
398
Abundant Numbers
694685
Arabic to Roman
370
Christmas Trees
481
Diamonds
368
Divisors
742
Emirp Numbers
390
Evil Numbers
784
Fibonacci
824
Fizz Buzz
541
Happy Numbers
312
Leap Years
704
Niven Numbers
859
Odious Numbers
781
Pascal’s Triangle
467
Pernicious Numbers
683
Prime Numbers
585
Quine
945
Roman to Arabic
309
Seven Segment
437
Spelling Numbers
211
π
270