12 Days of Christmas
481st48th
99 Bottles of Beer
43rd
Arabic to Roman
45th
Arrows
30th
CSS Colors
31st
Day of Week
1st
Fizz Buzz
140th639th1st
Happy Numbers (Long)
293rd51st
Look and Say
45th
Lucky Tickets
118th23rd
Number Spiral
160th26th
Pascal’s Triangle
383rd62nd
Pernicious Numbers
75th
Recamán
38th