12 Days of Christmas
90th571st
99 Bottles of Beer
472nd
Christmas Trees
383rd
CSS Colors
239th
Diamonds
472nd
Emirp Numbers
629th
Evil Numbers
860th
Fibonacci
1,012th
Fizz Buzz
779th
Happy Numbers
585th
Happy Numbers (Long)
333rd
Leap Years
505th
Leyland Numbers
249th
Look and Say
301st
Morse Encoder
241st
Ordinal Numbers
341st
Rock-paper-scissors-Spock-lizard
264th