12 Days of Christmas
371st99 Bottles of Beer
611thAbundant Numbers
614thArabic to Roman
169thChristmas Trees
329thCubes
86thDiamonds
164thDivisors
523rdEmirp Numbers
307thEvil Numbers
793rdFibonacci
641stFizz Buzz
1,250thHappy Numbers
265thLeap Years
765thLeyland Numbers
209thMorse Decoder
133rdMorse Encoder
140thNiven Numbers
552ndOdious Numbers
595thOrdinal Numbers
178thPangram Grep
353rdPascal’s Triangle
192ndPernicious Numbers
330thPrime Numbers
729thQuine
52ndRock-paper-scissors-Spock-lizard
113thRoman to Arabic
154thRule 110
141stSeven Segment
93rdSierpiński Triangle
136thSudoku
49th