12 Days of Christmas
412
99 Bottles of Beer
347
Abundant Numbers
399
Abundant Numbers (Long)
430
Arithmetic Numbers
417
Arrows
188
brainfuck
422
Collatz
507
CSS Colors
89
Day of Week
639
Divisors
527
Emirp Numbers
325
Emirp Numbers (Long)
387
Evil Numbers
281
Evil Numbers (Long)
287
Fibonacci
415
Fizz Buzz
955
Foo Fizz Buzz Bar
817
Forsyth–Edwards Notation
365
Fractions
593
Happy Numbers
311
Happy Numbers (Long)
369
ISBN
479
Leap Years
637
Look and Say
388
Lucky Numbers
352
Morse Decoder
160
Morse Encoder
181
Niven Numbers
361
Niven Numbers (Long)
417
Odious Numbers
280
Odious Numbers (Long)
286
Pernicious Numbers
185
ROT13
488
Zeckendorf Representation
297
π
506