Christmas Trees
14th
Divisors
1st
Emirp Numbers
90th
Evil Numbers
105th
Fibonacci
146th
Fizz Buzz
49th
Happy Numbers
45th
Niven Numbers
172nd
Odious Numbers
102nd
Pangram Grep
41st
Pascal’s Triangle
62nd
Pernicious Numbers
89th
Prime Numbers
63rd
Quine
55th
Sierpiński Triangle
101st
π
45th
τ
35th
φ
56th
𝑒
98th