12 Days of Christmas
82nd55th691st
Abundant Numbers
123rd71st453rd
Collatz
175th107th485th
Emojify
259th
Fibonacci
461st268th1,781st
Fizz Buzz
429th197th1,531st
Foo Fizz Buzz Bar
78th47th538th
Fractions
531st
Leap Years
749th
Niven Numbers
625th
Prime Numbers
229th96th575th
Prime Numbers (Long)
315th
Quine
109th
Recamán
362nd