12 Days of Christmas
4th
99 Bottles of Beer
5th
Abundant Numbers
2nd
21st161st18th
Abundant Numbers (Long)
1st
17th
Arithmetic Numbers
5th
Ascending Primes
1st
ASCII Table
5th
Card Number Validation
3rd
Catalan Numbers
1st
Collatz
2nd
Diamonds
4th
Divisors
1st1st
110th
Emirp Numbers
16th1st
Emirp Numbers (Long)
1st
Evil Numbers
26th
Evil Numbers (Long)
20th
Factorial Factorisation
4th
Farey Sequence
1st
Fibonacci
127th
27th14th1st1st
15th
Fizz Buzz
76th11th
Foo Fizz Buzz Bar
11th
Forsyth–Edwards Notation
1st
Fractions
5th
Game of Life
4th
Gijswijt’s Sequence
2nd
Happy Numbers
9th
7th
43rd
Happy Numbers (Long)
6th
3rd
ISBN
4th
22nd
Kolakoski Sequence
2nd
Leap Years
8th
Leyland Numbers
12th
Look and Say
5th
Niven Numbers
61st
6th24th4th
24th
Niven Numbers (Long)
7th1st1st
Number Spiral
8th
Odious Numbers
33rd
Odious Numbers (Long)
23rd
PalindromemordnilaP
1st
4th
Pangram Grep
5th
Pascal’s Triangle
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
1st
1st
1st
19th1st
67th
Reverse Polish Notation
3rd
ROT13
4th
Rule 110
3rd
Smith Numbers
3rd
Tic-tac-toe
2nd
Transpose Sentence
4th
United States
6th
Van Eck Sequence
6th
π
3rd
τ
3rd
√2
14th
𝑒
27th