12 Days of Christmas
14th
99 Bottles of Beer
6th
Abundant Numbers
11th
Abundant Numbers (Long)
10th
Arabic to Roman
8th
Arithmetic Numbers
9th
Arrows
8th
ASCII Table
8th
Card Number Validation
12th
Christmas Trees
9th
Collatz
58th13th
CSS Colors
7th
Day of Week
8th
Divisors
17th
Emirp Numbers
12th
Emirp Numbers (Long)
9th
Emojify
10th
Evil Numbers
13th
Evil Numbers (Long)
11th
Factorial Factorisation
6th
Farey Sequence
11th
Fibonacci
57th
30th
Fizz Buzz
16th
Fractions
11th
Happy Numbers
17th
Happy Numbers (Long)
10th
Intersection
7th
ISBN
9th
Leap Years
17th
Leyland Numbers
10th
Morse Encoder
8th
N Queens
5th
Niven Numbers
14th
Niven Numbers (Long)
1st
Odious Numbers
11th
Odious Numbers (Long)
13th
Ordinal Numbers
9th
Pangram Grep
12th
Partition Numbers
10th4th
Pascalβs Triangle
11th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
10th
Reverse Polish Notation
8th
Roman to Arabic
7th
ROT13
6th
Set
3rd
United States
28th10th
Vampire Numbers
7th
Ο
11th
β2
15th
π
12th