12 Days of Christmas
89th
99 Bottles of Beer
61st
Christmas Trees
67th
Cubes
36th
Diamonds
51st
Divisors
84th
Emirp Numbers
79th
Evil Numbers
99th
Fibonacci
215th
Fizz Buzz
343rd149th
Happy Numbers
71st
Leap Years
91st
Niven Numbers
79th
Odious Numbers
83rd
Ordinal Numbers
54th
Pangram Grep
46th
Pascal’s Triangle
79th
Pernicious Numbers
89th
Prime Numbers
62nd
Quine
206th