12 Days of Christmas
2nd
99 Bottles of Beer
5th
Abundant Numbers
1st
21st91st17th
Abundant Numbers (Long)
1st
17th
Arithmetic Numbers
5th
Ascending Primes
1st
ASCII Table
4th
Card Number Validation
3rd
Catalan Numbers
1st
Collatz
2nd
Diamonds
4th
Divisors
1st1st
1st
Emirp Numbers
16th1st
Emirp Numbers (Long)
1st
Evil Numbers
26th
Evil Numbers (Long)
20th
Factorial Factorisation
4th
Farey Sequence
1st
Fibonacci
120th
27th14th1st1st
15th
Fizz Buzz
76th10th
Foo Fizz Buzz Bar
10th
Forsyth–Edwards Notation
1st
Fractions
5th
Game of Life
3rd
Gijswijt’s Sequence
2nd
Happy Numbers
8th
4th
52nd
Happy Numbers (Long)
6th
3rd
ISBN
3rd
22nd
Kolakoski Sequence
1st
Leap Years
8th
Leyland Numbers
12th
Look and Say
4th
Niven Numbers
60th
6th24th2nd
23rd
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
1st1st
63rd
Reverse Polish Notation
3rd
ROT13
4th
Rule 110
2nd
Smith Numbers
3rd
Tic-tac-toe
2nd
Transpose Sentence
4th
United States
6th
Van Eck Sequence
6th
π
1st
τ
1st
√2
14th
𝑒
26th