12 Days of Christmas
203rd
Abundant Numbers
352nd
Arabic to Roman
69th
Catalan Numbers
154th
Christmas Trees
84th
Diamonds
117th
Divisors
379th
Emirp Numbers
257th
Evil Numbers
180th1,024th
Fibonacci
166th
Fizz Buzz
54th
Foo Fizz Buzz Bar
1st
ISBN
111th
Leap Years
482nd
Niven Numbers
460th
Odious Numbers
134th
Ordinal Numbers
215th
Pascal’s Triangle
201st
Prime Numbers
729th
Prime Numbers (Long)
379th
Quine
63rd
Rock-paper-scissors-Spock-lizard
53rd
Seven Segment
51st
Van Eck Sequence
111th