12 Days of Christmas
6th
99 Bottles of Beer
10th
Abundant Numbers
20th
Abundant Numbers (Long)
20th
Arithmetic Numbers
23rd
Ascending Primes
18th
brainfuck
34th
Catalan Numbers
25th
Collatz
28th
Divisors
25th
Emirp Numbers
20th
Emirp Numbers (Long)
8th
Evil Numbers
24th
Evil Numbers (Long)
19th
Farey Sequence
19th
Fibonacci
34th
Fizz Buzz
27th
Foo Fizz Buzz Bar
23rd
Happy Numbers
37th
Happy Numbers (Long)
32nd
Kaprekar Numbers
13th
Leap Years
27th
Leyland Numbers
17th
Niven Numbers
30th
Niven Numbers (Long)
25th
Odious Numbers
28th
Odious Numbers (Long)
21st
Pernicious Numbers
31st
Pernicious Numbers (Long)
16th
Prime Numbers
21st
Prime Numbers (Long)
21st
Recamán
11th
Tongue-twisters
27th
Vampire Numbers
12th