12 Days of Christmas
29th
99 Bottles of Beer
30th169th
Abundant Numbers
35th61st31st207th
Abundant Numbers (Long)
34th37th30th112th
Arabic to Roman
18th
Arithmetic Numbers
22nd
29th76th
Arrows
13th
18th
Catalan Numbers
19th
Christmas Trees
30th
Collatz
43rd
35th
Day of Week
31st
Divisors
53rd
Evil Numbers
92nd
Evil Numbers (Long)
53rd
Fibonacci
110th
97th178th
Fizz Buzz
131st96th
64th1st
Leap Years
74th
Levenshtein Distance
15th
Look and Say
16th
Niven Numbers
76th
Niven Numbers (Long)
41st
Odious Numbers
81st
Odious Numbers (Long)
50th
Ordinal Numbers
22nd
Pangram Grep
45th
Prime Numbers
41st
Prime Numbers (Long)
31st
Quine
40th
Time Distance
11th
Tongue-twisters
21st
π
34th