12 Days of Christmas
16th
99 Bottles of Beer
9th
Abundant Numbers
13th
Abundant Numbers (Long)
12th
Arabic to Roman
9th
Arithmetic Numbers
8th
Arrows
8th
ASCII Table
10th
Card Number Validation
12th
Catalan Numbers
12th
Christmas Trees
11th
Collatz
72nd13th
CSS Colors
7th
Day of Week
11th
Divisors
20th
Emirp Numbers
13th
Emirp Numbers (Long)
9th
Emojify
12th
Evil Numbers
10th
Evil Numbers (Long)
9th
Factorial Factorisation
6th
Farey Sequence
11th
Fibonacci
64th
40th
Fizz Buzz
18th
Foo Fizz Buzz Bar
12th
Fractions
13th
Happy Numbers
20th
Happy Numbers (Long)
12th
Intersection
9th
ISBN
10th
Kaprekar Numbers
16th
Kolakoski Constant
9th
Kolakoski Sequence
12th
Leap Years
18th
Levenshtein Distance
8th
Leyland Numbers
13th
ln 2
19th7th
Morse Encoder
8th
N Queens
5th
Niven Numbers
18th
Niven Numbers (Long)
1st
Number Spiral
12th
Odious Numbers
13th
Odious Numbers (Long)
13th
Ordinal Numbers
9th
Pangram Grep
14th
Partition Numbers
14th5th
Pascal’s Triangle
13th
Pernicious Numbers
20th
Pernicious Numbers (Long)
10th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
10th
Recamán
8th
Reverse Polish Notation
9th
Rijndael S-box
7th
Roman to Arabic
8th
ROT13
9th
Set
6th
Seven Segment
8th
Smith Numbers
10th
Tic-tac-toe
10th
Time Distance
7th
Tongue-twisters
10th
Transpose Sentence
9th
Trinomial Triangle
10th
United States
32nd10th
Vampire Numbers
7th
Van Eck Sequence
10th
π
13th
τ
10th
φ
9th
√2
14th
𝑒
13th