12 Days of Christmas
4th
99 Bottles of Beer
6th
Abundant Numbers
19th146th16th
Abundant Numbers (Long)
15th
Arithmetic Numbers
Ascending Primes
ASCII Table
5th
Card Number Validation
Catalan Numbers
1st
Collatz
Diamonds
4th
Divisors
1st1st
99th
Emirp Numbers
16th
Emirp Numbers (Long)
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
3rd
Farey Sequence
1st
Fibonacci
122nd
24th11th1st1st
13th
Fizz Buzz
74th11th
Foo Fizz Buzz Bar
10th
Forsyth–Edwards Notation
1st
Fractions
5th
Game of Life
4th
Gijswijt’s Sequence
2nd
Happy Numbers
7th
37th
Happy Numbers (Long)
6th
ISBN
4th
22nd
Kolakoski Sequence
2nd
Leap Years
8th
Leyland Numbers
12th
Look and Say
5th
Niven Numbers
55th
4th23rd
20th
Niven Numbers (Long)
5th1st
Number Spiral
7th
Odious Numbers
Odious Numbers (Long)
PalindromemordnilaP
1st
4th
Pangram Grep
Pascal’s Triangle
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
1st
1st
1st
1st1st
56th
Reverse Polish Notation
3rd
ROT13
4th
Rule 110
3rd
Smith Numbers
Tic-tac-toe
2nd
Transpose Sentence
4th
Van Eck Sequence
6th
π
3rd
τ
3rd
√2
13th
𝑒
26th