12 Days of Christmas
66299 Bottles of Beer
651Abundant Numbers
571Arabic to Roman
573Christmas Trees
428CSS Colors
174Cubes
192Diamonds
351Divisors
666
738Emirp Numbers
709Evil Numbers
554
678Fibonacci
776Fizz Buzz
536
357
652Happy Numbers
721Leap Years
757
682Leyland Numbers
109Morse Decoder
289Morse Encoder
245Niven Numbers
580Odious Numbers
545
651Ordinal Numbers
233Pangram Grep
336Pascal’s Triangle
147Pernicious Numbers
492Prime Numbers
572
768Quine
624Rock-paper-scissors-Spock-lizard
675Roman to Arabic
281Rule 110
10Seven Segment
336Sierpiński Triangle
358Tongue-twisters
715United States
251Vampire Numbers
277λ
539π
203τ
199φ
168√2
203𝑒
160