12 Days of Christmas
627th63rd
99 Bottles of Beer
54th
Arabic to Roman
58th
Arrows
40th
CSS Colors
40th
Day of Week
82nd
Fizz Buzz
152nd778th4th
Happy Numbers (Long)
371st62nd
Look and Say
61st
Lucky Tickets
170th34th
Number Spiral
219th41st
Pascal’s Triangle
471st79th
Pernicious Numbers
96th
Recamán
53rd