12 Days of Christmas
419
Abundant Numbers
588
Catalan’s Constant
132
Collatz
653
Diamonds
382
Divisors
659
Emirp Numbers
394
Evil Numbers
419
Evil Numbers (Long)
412
Fibonacci
692
Fizz Buzz
692
Happy Numbers
357
Hexdump
477
Intersection
590
Leap Years
697
Lucky Numbers
294
Morse Decoder
97
Morse Encoder
228
Number Spiral
288
Odious Numbers
458
Odious Numbers (Long)
435
Pernicious Numbers (Long)
354
Prime Numbers
383
Recamán
489
Reverse Polish Notation
370
Smith Numbers
138