12 Days of Christmas
594th58th
99 Bottles of Beer
52nd
Arabic to Roman
54th
Arrows
38th
CSS Colors
38th
Day of Week
79th
Fizz Buzz
152nd747th4th
Happy Numbers (Long)
347th57th
Look and Say
53rd
Lucky Tickets
155th28th
Number Spiral
198th35th
Pascal’s Triangle
450th75th
Pernicious Numbers
89th
Recamán
49th