12 Days of Christmas
276th
Abundant Numbers
393rd
Arabic to Roman
120th
Catalan Numbers
163rd
Christmas Trees
141st
Diamonds
147th
Divisors
418th
Emirp Numbers
295th
Evil Numbers
190th1,057th
Fibonacci
181st
Fizz Buzz
205th
Foo Fizz Buzz Bar
127th
ISBN
145th
Leap Years
504th
Niven Numbers
473rd
Odious Numbers
143rd
Ordinal Numbers
241st
Pascal’s Triangle
219th
Prime Numbers
755th
Prime Numbers (Long)
396th
Quine
70th
Rock-paper-scissors-Spock-lizard
81st
Seven Segment
79th
Van Eck Sequence
137th