12 Days of Christmas
754
Abundant Numbers
607
Catalan’s Constant
125
Collatz
642
Diamonds
388
Divisors
638
Emirp Numbers
471
Evil Numbers
402
Evil Numbers (Long)
399
Fibonacci
689
Fizz Buzz
681
Happy Numbers
463
Hexdump
459
Intersection
593
Leap Years
689
Lucky Numbers
278
Morse Decoder
91
Morse Encoder
194
Number Spiral
286
Odious Numbers
438
Odious Numbers (Long)
419
Pernicious Numbers (Long)
341
Prime Numbers
376
Recamán
472
Reverse Polish Notation
339
Smith Numbers
130