12 Days of Christmas
61st
99 Bottles of Beer
12th
Arabic to Roman
14th
Card Number Validation
12th
Catalan Numbers
6th
Day of Week
11th
Fibonacci
136th
Fizz Buzz
103rd
Fractions
15th
Medal Tally
12th
Morse Encoder
7th
Niven Numbers
29th
PalindromemordnilaP
8th
Pascal’s Triangle
33rd
Quine
61st
Repeating Decimals
6th
Transpose Sentence
7th