12 Days of Christmas
562nd
Christmas Trees
285th
Divisors
1st
Emirp Numbers
49th
Emirp Numbers (Long)
186th
Evil Numbers
1st
Evil Numbers (Long)
32nd
Fibonacci
153rd
Fizz Buzz
51st19th
Foo Fizz Buzz Bar
1st
Leap Years
332nd
Niven Numbers
117th
Pascal’s Triangle
183rd
Prime Numbers
696th
Quine
56th
Smith Numbers
138th
π
110th
τ
91st
√2
189th