12 Days of Christmas
24th
99 Bottles of Beer
22nd165th
Abundant Numbers
31st58th21st196th
Abundant Numbers (Long)
30th35th16th103rd
Arabic to Roman
13th
Arithmetic Numbers
21st
20th70th
Arrows
12th
13th
Catalan Numbers
11th
Christmas Trees
24th
Collatz
39th
15th
Day of Week
22nd
Divisors
40th
Evil Numbers
84th
Evil Numbers (Long)
45th
Fibonacci
104th
69th168th
Fizz Buzz
129th90th
25th1st
Leap Years
65th
Levenshtein Distance
12th
Look and Say
9th
Niven Numbers
69th
Niven Numbers (Long)
32nd
Odious Numbers
71st
Odious Numbers (Long)
40th
Ordinal Numbers
18th
Pangram Grep
39th
Prime Numbers
29th
Prime Numbers (Long)
16th
Quine
20th
Time Distance
9th
Tongue-twisters
14th
π
33rd