12 Days of Christmas
2nd
99 Bottles of Beer
5th
Abundant Numbers
1st
15th
72nd
Abundant Numbers (Long)
1st
Arithmetic Numbers
5th
Ascending Primes
1st
ASCII Table
4th
Catalan Numbers
1st
Collatz
3rd
Diamonds
4th
Divisors
1st
1st
1st
Emirp Numbers
15th
1st
Emirp Numbers (Long)
1st
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
3rd
Farey Sequence
1st
Fibonacci
19th
1st
1st
7th
Fizz Buzz
68th
10th
Foo Fizz Buzz Bar
9th
Forsyth–Edwards Notation
1st
Fractions
5th
Game of Life
2nd
Gijswijt’s Sequence
2nd
Happy Numbers
7th
3rd
40th
Happy Numbers (Long)
4th
1st
ISBN
3rd
19th
Kolakoski Sequence
1st
Leap Years
12th
Leyland Numbers
12th
Look and Say
7th
Niven Numbers
1st
14th
Niven Numbers (Long)
1st
Number Spiral
7th
Odious Numbers
1st
Odious Numbers (Long)
1st
Pangram Grep
8th
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
1st
1st
1st
1st
1st
51st
Reverse Polish Notation
3rd
Rule 110
4th
Smith Numbers
4th
Van Eck Sequence
6th
π
1st
τ
1st
√2
13th
𝑒
26th