12 Days of Christmas
17th
99 Bottles of Beer
9th
Abundant Numbers
14th
Abundant Numbers (Long)
14th
Arabic to Roman
12th
Arithmetic Numbers
10th
Arrows
9th
ASCII Table
11th
Card Number Validation
14th
Catalan Numbers
12th
Christmas Trees
13th
Collatz
77th15th
CSS Colors
7th
Day of Week
15th
Divisors
22nd
Emirp Numbers
14th
Emirp Numbers (Long)
9th
Emojify
13th
Evil Numbers
13th
Evil Numbers (Long)
12th
Factorial Factorisation
6th
Farey Sequence
10th
Fibonacci
66th
48th
Fizz Buzz
22nd
Foo Fizz Buzz Bar
12th
Fractions
13th
Happy Numbers
22nd
Happy Numbers (Long)
12th
Intersection
10th
ISBN
11th
Kaprekar Numbers
16th
Kolakoski Constant
10th
Kolakoski Sequence
13th
Leap Years
19th
Levenshtein Distance
8th
Leyland Numbers
13th
ln 2
20th7th
Minesweeper
7th
Morse Encoder
7th
N Queens
5th
Niven Numbers
20th
Niven Numbers (Long)
1st
Number Spiral
8th
Odious Numbers
17th
Odious Numbers (Long)
16th
Ordinal Numbers
11th
Pangram Grep
15th
Partition Numbers
16th5th
Pascal’s Triangle
15th
Pernicious Numbers
22nd
Pernicious Numbers (Long)
11th
Prime Numbers
6th
Prime Numbers (Long)
1st
Quine
11th
Recamán
9th
Reverse Polish Notation
10th
Rijndael S-box
8th
Roman to Arabic
9th
ROT13
11th
Set
6th
Seven Segment
10th
Smith Numbers
10th
Tic-tac-toe
10th
Time Distance
7th
Tongue-twisters
11th
Transpose Sentence
10th
Trinomial Triangle
12th
United States
33rd10th
Vampire Numbers
9th
Van Eck Sequence
10th
π
14th
τ
10th
φ
10th
√2
11th
𝑒
13th