12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
3,540th
Arabic to Roman
Christmas Trees
Cubes
Diamonds
Divisors
4,198th
4,250th
4,424th
Emirp Numbers
2,577th
Evil Numbers
4,250th
Fibonacci
7,373rd
Fizz Buzz
11,498th
9,214th
11,717th
Happy Numbers
2,588th
2,564th
2,567th
Leap Years
3,756th
3,238th
3,035th
Morse Decoder
Morse Encoder
Niven Numbers
3,390th
3,362nd
3,309th
Odious Numbers
3,423rd
3,357th
3,362nd
Ordinal Numbers
Pangram Grep
Pascalβs Triangle
Pernicious Numbers
Prime Numbers
4,570th
4,565th
4,587th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment