12 Days of Christmas
8th
99 Bottles of Beer
10th
Abundant Numbers
16th
Abundant Numbers (Long)
17th
Arithmetic Numbers
19th
Ascending Primes
14th
brainfuck
34th
Catalan Numbers
25th
Collatz
24th
Divisors
22nd
Emirp Numbers
21st
Emirp Numbers (Long)
8th
Evil Numbers
20th
Evil Numbers (Long)
19th
Farey Sequence
17th
Fibonacci
30th
Fizz Buzz
23rd
Foo Fizz Buzz Bar
20th
Happy Numbers
36th
Happy Numbers (Long)
31st
Kaprekar Numbers
12th
Leap Years
23rd
Leyland Numbers
14th
Niven Numbers
25th
Niven Numbers (Long)
21st
Odious Numbers
23rd
Odious Numbers (Long)
18th
Pernicious Numbers
25th
Pernicious Numbers (Long)
11th
Prime Numbers
17th
Prime Numbers (Long)
15th
Recamán
10th
Tongue-twisters
25th
Vampire Numbers
14th