12 Days of Christmas
677th
Christmas Trees
348th
Divisors
1st
Emirp Numbers
50th
Emirp Numbers (Long)
243rd
Evil Numbers
1st
Evil Numbers (Long)
43rd
Fibonacci
197th
Fizz Buzz
66th20th
Foo Fizz Buzz Bar
1st
Leap Years
385th
Niven Numbers
156th
Pascal’s Triangle
220th
Prime Numbers
779th
Quine
82nd
Smith Numbers
170th
π
156th
τ
130th
√2
241st