12 Days of Christmas
754
Abundant Numbers
601
Catalan’s Constant
122
Collatz
636
Diamonds
372
Divisors
632
Emirp Numbers
469
Evil Numbers
401
Evil Numbers (Long)
397
Fibonacci
687
Fizz Buzz
677
Happy Numbers
459
Hexdump
452
Intersection
588
Leap Years
686
Lucky Numbers
275
Morse Decoder
90
Morse Encoder
192
Number Spiral
284
Odious Numbers
435
Odious Numbers (Long)
416
Pernicious Numbers (Long)
335
Prime Numbers
375
Recamán
464
Reverse Polish Notation
337
Smith Numbers
130