12 Days of Christmas
252
Abundant Numbers
588
Catalan’s Constant
131
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
222
Number Spiral
288
Odious Numbers
449
Odious Numbers (Long)
426
Pernicious Numbers (Long)
354
Prime Numbers
383
Recamán
489
Reverse Polish Notation
370
Smith Numbers
138