12 Days of Christmas
13th
Abundant Numbers
6th
Abundant Numbers (Long)
5th
Arithmetic Numbers
10th
Ascending Primes
13th
ASCII Table
5th
brainfuck
4th
Card Number Validation
7th
Catalan Numbers
11th
Christmas Trees
33rd
Collatz
17th1st
Day of Week
12th
Divisors
23rd10th90th795th
Emirp Numbers
12th
Emirp Numbers (Long)
5th
Evil Numbers
30th
Evil Numbers (Long)
30th
Factorial Factorisation
7th
Farey Sequence
20th
Fibonacci
214th1st1st
Fizz Buzz
154th48th
Foo Fizz Buzz Bar
4th
Fractions
8th
Game of Life
15th
Gijswijt’s Sequence
4th
Happy Numbers
23rd
Happy Numbers (Long)
10th
Inventory Sequence
💎8th
ISBN
3rd
Kaprekar Numbers
7th
Kolakoski Sequence
15th
Leap Years
3rd
Levenshtein Distance
6th
Leyland Numbers
11th
ln 2
16th
Look and Say
4th
Lucky Numbers
14th
Lucky Tickets
5th
N Queens
💎
Niven Numbers
14th
Niven Numbers (Long)
7th
Number Spiral
3rd
Odious Numbers
37th27th
Odious Numbers (Long)
24th17th
Ordinal Numbers
7th
PalindromemordnilaP
5th
Pangram Grep
4th
Partition Numbers
4th
Pascal’s Triangle
7th
Pernicious Numbers
30th
Pernicious Numbers (Long)
8th
Polyominoes
2nd
Prime Numbers
6th
Prime Numbers (Long)
3rd
Proximity Grid
2nd
Quine
95th24th95th684th
Recamán
11th
Repeating Decimals
6th3rd
Reverse Polish Notation
5th
Rijndael S-box
9th
Roman to Arabic
13th
ROT13
4th
Set
4th
Seven Segment
13th
Sierpiński Triangle
10th
Smith Numbers
5th
Spelling Numbers
7th
Tic-tac-toe
2nd
Transpose Sentence
5th
United States
16th
Vampire Numbers
7th
Van Eck Sequence
5th
Zeckendorf Representation
2nd
π
23rd