12 Days of Christmas
624th
Christmas Trees
315th
Divisors
1st
Emirp Numbers
50th
Emirp Numbers (Long)
221st
Evil Numbers
1st
Evil Numbers (Long)
35th
Fibonacci
181st
Fizz Buzz
54th20th
Foo Fizz Buzz Bar
1st
Leap Years
363rd
Niven Numbers
140th
Pascal’s Triangle
207th
Prime Numbers
745th
Quine
70th
Smith Numbers
156th
π
136th
τ
115th
√2
219th