Christmas Trees
88th
Divisors
108th
Emirp Numbers
12th
Evil Numbers
121st
Fibonacci
166th
Fizz Buzz
201st
Happy Numbers
42nd
Niven Numbers
195th
Odious Numbers
113th
Pangram Grep
109th
Pascal’s Triangle
106th
Pernicious Numbers
101st
Prime Numbers
72nd
Quine
63rd
Sierpiński Triangle
126th
π
70th
τ
60th
φ
77th
𝑒
141st