12 Days of Christmas
💎
3rd
99 Bottles of Beer
2nd
4th
Abundant Numbers
1st
5th
Abundant Numbers (Long)
1st
5th
Arabic to Roman
11th
Arithmetic Numbers
4th
Ascending Primes
1st
ASCII Table
2nd
1st
Catalan Numbers
1st
1st
Catalan’s Constant
1st
1st
Christmas Trees
1st
7th
Collatz
3rd
Cubes
💎
6th
Diamonds
4th
1st
Divisors
1st
1st
Emirp Numbers
8th
1st
Emirp Numbers (Long)
7th
9th
Evil Numbers
4th
1st
3rd
Evil Numbers (Long)
1st
1st
3rd
Farey Sequence
1st
Fibonacci
1st
1st
Fizz Buzz
1st
245th
Foo Fizz Buzz Bar
1st
1st
Fractions
1st
8th
Game of Life
9th
Gijswijt’s Sequence
15th
Happy Numbers
1st
1st
Happy Numbers (Long)
1st
5th
Hexdump
14th
Intersection
1st
15th
Inventory Sequence
2nd
2nd
ISBN
7th
2nd
Jacobi Symbol
3rd
Kolakoski Constant
💎
2nd
Kolakoski Sequence
1st
1st
Leap Years
1st
1st
Levenshtein Distance
3rd
Leyland Numbers
4th
4th
Look and Say
1st
3rd
Lucky Numbers
4th
1st
Lucky Tickets
1st
1st
Niven Numbers
1st
1st
Niven Numbers (Long)
1st
Number Spiral
5th
4th
Odious Numbers
4th
1st
1st
Odious Numbers (Long)
1st
1st
Ordinal Numbers
1st
2nd
2nd
Pangram Grep
1st
1st
Pascal’s Triangle
3rd
1st
Pernicious Numbers
3rd
1st
Pernicious Numbers (Long)
1st
1st
Prime Numbers
1st
1st
7th
Prime Numbers (Long)
1st
1st
Quine
1st
1st
Recamán
1st
1st
Repeating Decimals
1st
Reverse Polish Notation
1st
10th
Rijndael S-box
3rd
Roman to Arabic
1st
20th
Rule 110
3rd
4th
Seven Segment
9th
Sierpiński Triangle
1st
6th
Smith Numbers
9th
Spelling Numbers
5th
6th
Tongue-twisters
6th
Vampire Numbers
3rd
2nd
Van Eck Sequence
5th
17th
π
5th
1st
τ
4th
3rd
φ
1st
1st
√2
1st
1st
𝑒
2nd
1st