12 Days of Christmas
5th
99 Bottles of Beer
7th
Abundant Numbers
1st2nd
21st180th23rd
Abundant Numbers (Long)
1st
23rd
Arithmetic Numbers
5th
Ascending Primes
1st
ASCII Table
7th
Calendar
3rd
Card Number Validation
5th
Catalan Numbers
1st
Collatz
2nd
Diamonds
5th
Divisors
1st1st
123rd
Emirp Numbers
16th1st
Emirp Numbers (Long)
1st
Evil Numbers
29th
Evil Numbers (Long)
23rd
Factorial Factorisation
5th
Farey Sequence
1st
Fibonacci
139th
31st16th1st1st
16th
Fizz Buzz
77th12th
Foo Fizz Buzz Bar
12th
Forsyth–Edwards Notation
2nd
Fractions
6th
Game of Life
7th
Gijswijt’s Sequence
2nd
Happy Numbers
11th
9th
54th
Happy Numbers (Long)
7th
4th
ISBN
5th
24th
Kolakoski Sequence
2nd
Leap Years
9th
Leyland Numbers
14th
Look and Say
7th
Niven Numbers
66th
8th27th6th
25th
Niven Numbers (Long)
8th1st1st
Number Spiral
8th
Odious Numbers
35th
Odious Numbers (Long)
25th
PalindromemordnilaP
2nd
4th
Pangram Grep
7th
Pascal’s Triangle
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
1st
1st
1st
42nd1st
80th
Reverse Polish Notation
4th
ROT13
6th
Rule 110
5th
Scrambled Sort
1st
Smith Numbers
4th
Tic-tac-toe
3rd
Tower of Hanoi
5th
Transpose Sentence
5th
Trinomial Triangle
4th
United States
7th
Vampire Numbers
11th
Van Eck Sequence
8th
π
3rd
τ
3rd
√2
16th
𝑒
29th