12 Days of Christmas
354th
Christmas Trees
291st
Divisors
88th
Emirp Numbers
66th
Evil Numbers
151st
127th
Fibonacci
281st1,754th
Fizz Buzz
1st
Happy Numbers
59th
Leap Years
249th
Niven Numbers
1st
Odious Numbers
124th
Pangram Grep
101st
Pascal’s Triangle
101st
Pernicious Numbers
69th
Prime Numbers
122nd
Seven Segment
69th