12 Days of Christmas
754
Abundant Numbers
601
Catalan’s Constant
124
Collatz
637
Diamonds
382
Divisors
632
Emirp Numbers
469
Evil Numbers
401
Evil Numbers (Long)
397
Fibonacci
687
Fizz Buzz
678
Happy Numbers
459
Hexdump
453
Intersection
588
Leap Years
675
Lucky Numbers
275
Morse Decoder
91
Morse Encoder
194
Number Spiral
284
Odious Numbers
435
Odious Numbers (Long)
416
Pernicious Numbers (Long)
335
Prime Numbers
375
Recamán
464
Reverse Polish Notation
340
Smith Numbers
131