12 Days of Christmas
27th179th154th42nd71st51st128th373rd35th60th28th49th
137th1,058th35th113th89th23rd45th18th
99 Bottles of Beer
21st
395th
985th
Fibonacci
136th547th
169th
305th552nd
201st
202nd
1,421st175th252nd255th
Fizz Buzz
181st
971st
2,622nd
304th
Happy Numbers
230th
Leap Years
60th
470th
886th
Recamán
408th