12 Days of Christmas
348th
Christmas Trees
285th
Divisors
85th
Emirp Numbers
72nd
Evil Numbers
148th
121st
Fibonacci
271st1,715th
Fizz Buzz
1st
Happy Numbers
68th
Leap Years
242nd
Niven Numbers
1st
Odious Numbers
120th
Pangram Grep
95th
Pascal’s Triangle
100th
Pernicious Numbers
68th
Prime Numbers
120th
Seven Segment
73rd