12 Days of Christmas
252
Abundant Numbers
629
Catalan’s Constant
131
Collatz
663
Diamonds
382
Divisors
659
Emirp Numbers
497
Evil Numbers
419
Evil Numbers (Long)
420
Fibonacci
708
Fizz Buzz
692
Happy Numbers
487
Hexdump
477
Intersection
590
Leap Years
711
Lucky Numbers
298
Morse Decoder
97
Morse Encoder
200
Number Spiral
288
Odious Numbers
449
Odious Numbers (Long)
426
Pernicious Numbers (Long)
361
Prime Numbers
391
Recamán
496
Reverse Polish Notation
370
Smith Numbers
139