12 Days of Christmas
769th
99 Bottles of Beer
643rd
Abundant Numbers
728th
Arrows
127th
Collatz
515th
Emirp Numbers
628th48th
Evil Numbers (Long)
445th
Fizz Buzz
1,561st309th
Foo Fizz Buzz Bar
506th
Leap Years
229th79th277th70th478th
Niven Numbers (Long)
203rd
Prime Numbers
724th
Rock-paper-scissors-Spock-lizard
226th
Sierpiński Triangle
361st