12 Days of Christmas
27th
99 Bottles of Beer
31st147th
Abundant Numbers
36th62nd39th212th
Abundant Numbers (Long)
34th37th53rd116th
Arabic to Roman
19th
Arithmetic Numbers
23rd
31st80th
Arrows
15th
19th
Catalan Numbers
19th
Christmas Trees
30th
Collatz
44th
39th
Day of Week
31st
Divisors
57th
Evil Numbers
94th
Evil Numbers (Long)
55th
Fibonacci
113th
106th181st
Fizz Buzz
134th97th
73rd1st
Leap Years
82nd
Levenshtein Distance
15th
Look and Say
16th
Niven Numbers
80th
Niven Numbers (Long)
44th
Odious Numbers
83rd
Odious Numbers (Long)
51st
Ordinal Numbers
23rd
Pangram Grep
48th
Prime Numbers
48th
Prime Numbers (Long)
36th
Quine
43rd
Time Distance
12th
Tongue-twisters
22nd
π
33rd