12 Days of Christmas
79thAbundant Numbers
149thCatalan’s Constant
35thCollatz
141stDiamonds
54thDivisors
205thEmirp Numbers
68thEvil Numbers
198thEvil Numbers (Long)
85thFibonacci
298thFizz Buzz
341stHappy Numbers
83rdHexdump
28thIntersection
40thLeap Years
189thLucky Numbers
28thMorse Decoder
14thMorse Encoder
20thNumber Spiral
40thOdious Numbers
141stOdious Numbers (Long)
72ndPernicious Numbers (Long)
35thPrime Numbers
233rdRecamán
47thReverse Polish Notation
32ndSmith Numbers
32nd