12 Days of Christmas
430
Abundant Numbers
566
Catalan’s Constant
124
Collatz
630
Diamonds
386
Divisors
638
Emirp Numbers
376
Evil Numbers
402
Evil Numbers (Long)
391
Fibonacci
674
Fizz Buzz
679
Happy Numbers
342
Hexdump
451
Intersection
588
Leap Years
688
Lucky Numbers
275
Morse Decoder
89
Morse Encoder
212
Number Spiral
286
Odious Numbers
438
Odious Numbers (Long)
411
Pernicious Numbers (Long)
335
Prime Numbers
368
Recamán
463
Reverse Polish Notation
337
Smith Numbers
129