12 Days of Christmas
675th
Christmas Trees
354th
Divisors
119th
Emirp Numbers
50th
Emirp Numbers (Long)
237th
Evil Numbers
1st
Evil Numbers (Long)
41st
Fibonacci
189th
Fizz Buzz
212th20th
Foo Fizz Buzz Bar
133rd
Leap Years
383rd
Niven Numbers
149th
Pascal’s Triangle
226th
Prime Numbers
773rd
Quine
75th
Smith Numbers
169th
π
167th
τ
132nd
√2
256th