12 Days of Christmas
355th
Christmas Trees
291st
Divisors
88th
Emirp Numbers
66th
Evil Numbers
152nd
128th
Fibonacci
285th1,778th
Fizz Buzz
1st
Happy Numbers
60th
Leap Years
254th
Niven Numbers
1st
Odious Numbers
125th
Pangram Grep
102nd
Pascal’s Triangle
105th
Pernicious Numbers
71st
Prime Numbers
127th
Seven Segment
70th