12 Days of Christmas
1,679th
99 Bottles of Beer
1,887th
Abundant Numbers
2,780th3,283rd2,663rd2,428th3,667th
Christmas Trees
1,077th
Diamonds
1,575th
Divisors
3,415th28th
Emirp Numbers
1,972nd
Evil Numbers
2,715th
Fibonacci
7,860th
2,942nd
Fizz Buzz
7,128th
Happy Numbers
1,649th
Morse Encoder
563rd
Niven Numbers
2,566th
Odious Numbers
2,392nd
Pascal’s Triangle
1,533rd
Pernicious Numbers
1,984th
Prime Numbers
3,820th
Quine
3,037th
Rock-paper-scissors-Spock-lizard
533rd
United States
913th
λ
2,285th