12 Days of Christmas
2nd
99 Bottles of Beer
6th
Abundant Numbers
19th84th15th
Abundant Numbers (Long)
15th
Arithmetic Numbers
Ascending Primes
ASCII Table
4th
Card Number Validation
Catalan Numbers
1st
Collatz
Diamonds
4th
Divisors
1st1st
1st
Emirp Numbers
16th
Emirp Numbers (Long)
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
3rd
Farey Sequence
1st
Fibonacci
115th
24th11th1st1st
13th
Fizz Buzz
74th10th
Foo Fizz Buzz Bar
9th
Forsyth–Edwards Notation
1st
Fractions
5th
Game of Life
3rd
Gijswijt’s Sequence
2nd
Happy Numbers
7th
46th
Happy Numbers (Long)
6th
ISBN
3rd
22nd
Kolakoski Sequence
1st
Leap Years
8th
Leyland Numbers
12th
Look and Say
4th
Niven Numbers
54th
4th23rd
19th
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
2nd
Smith Numbers
Tic-tac-toe
2nd
Transpose Sentence
4th
Van Eck Sequence
6th
π
1st
τ
1st
√2
13th
𝑒
26th