12 Days of Christmas
💎
3rd
99 Bottles of Beer
2nd
4th
Abundant Numbers
1st
5th
Abundant Numbers (Long)
1st
4th
Arabic to Roman
12th
Arithmetic Numbers
4th
Ascending Primes
1st
ASCII Table
1st
1st
Billiards
4th
Card Number Validation
1st
Catalan Numbers
1st
1st
Catalan’s Constant
1st
1st
Christmas Trees
1st
8th
Collatz
2nd
Cubes
💎
9th
Diamonds
4th
1st
Divisors
1st
1st
Emirp Numbers
8th
1st
Emirp Numbers (Long)
7th
10th
Evil Numbers
6th
1st6th
Evil Numbers (Long)
1st
1st3rd
Factorial Factorisation
💎
5th
Farey Sequence
1st
Fibonacci
1st
1st
Fizz Buzz
1st280th
Foo Fizz Buzz Bar
1st
1st
Fractions
1st
1st
Game of Life
12th
Gijswijt’s Sequence
18th
Happy Numbers
1st
1st
Happy Numbers (Long)
1st
8th
Hexdump
17th
Intersection
1st
16th
Inventory Sequence
2nd
2nd
ISBN
7th
4th
Jacobi Symbol
4th
Kolakoski Constant
💎
5th
Kolakoski Sequence
1st
1st
Leap Years
1st
1st
Levenshtein Distance
3rd
Leyland Numbers
4th
6th
Look and Say
1st
4th
Lucky Numbers
4th
3rd
Lucky Tickets
1st
1st
Niven Numbers
1st
1st
Niven Numbers (Long)
1st
Number Spiral
5th
5th
Odious Numbers
6th
1st1st
Odious Numbers (Long)
1st
1st
Ordinal Numbers
1st
2nd2nd
PalindromemordnilaP
1st3rd5th
Pangram Grep
1st
1st
Pascal’s Triangle
3rd
1st
Pernicious Numbers
5th
1st
Pernicious Numbers (Long)
1st
1st
Prime Numbers
1st
1st10th
Prime Numbers (Long)
1st
1st
Quine
1st
1st
Recamán
1st
3rd
Repeating Decimals
1st
Reverse Polish Notation
1st
17th
Rijndael S-box
4th
Roman to Arabic
1st
22nd
ROT13
1st
1st
Rule 110
3rd
8th
Seven Segment
11th
Sierpiński Triangle
1st
8th
Smith Numbers
11th
Spelling Numbers
5th
12th
Tic-tac-toe
1st
3rd
Tongue-twisters
7th
Transpose Sentence
16th
United States
Vampire Numbers
3rd
3rd
Van Eck Sequence
5th
20th
Zeckendorf Representation
14th
π
5th
1st
τ
4th
3rd
φ
1st
1st
√2
1st
1st
𝑒
2nd
1st