12 Days of Christmas
226th
Abundant Numbers
377th
Arabic to Roman
82nd
Catalan Numbers
175th
Christmas Trees
97th
Diamonds
135th
Divisors
401st
Emirp Numbers
277th
Evil Numbers
201st1,084th
Fibonacci
193rd
Fizz Buzz
61st
Foo Fizz Buzz Bar
1st
ISBN
129th
Leap Years
513th
Niven Numbers
492nd
Odious Numbers
151st
Ordinal Numbers
231st
Pascal’s Triangle
216th
Prime Numbers
771st
Prime Numbers (Long)
412th
Quine
79th
Rock-paper-scissors-Spock-lizard
62nd
Seven Segment
56th
Van Eck Sequence
132nd