12 Days of Christmas
4th
99 Bottles of Beer
6th
Abundant Numbers
8th
15th
Arabic to Roman
2nd
5th
Ascending Primes
6th
ASCII Table
2nd
312th
brainfuck
2nd
Catalan Numbers
1st
Christmas Trees
1st
Collatz
4th
Diamonds
1st
Divisors
1st
1st
11th
1st
Emirp Numbers
1st
627th
Emirp Numbers (Long)
1st
Evil Numbers
1st
1st
Evil Numbers (Long)
1st
Factorial Factorisation
2nd
Farey Sequence
1st
Fibonacci
28th
1st
17th
1st
Fizz Buzz
3rd
2,034th
Foo Fizz Buzz Bar
4th
Fractions
2nd
Happy Numbers
7th
92nd
Happy Numbers (Long)
6th
Hexdump
3rd
Intersection
6th
Inventory Sequence
1st
ISBN
14th
6th
16th
Kolakoski Constant
4th
Kolakoski Sequence
1st
1st
Leap Years
5th
848th
Levenshtein Distance
2nd
6th
54th
Leyland Numbers
1st
93rd
Look and Say
1st
Lucky Numbers
16th
4th
58th
Lucky Tickets
8th
6th
75th
Niven Numbers
5th
25th
Niven Numbers (Long)
4th
Number Spiral
11th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
2nd
346th
Pangram Grep
3rd
Pascal’s Triangle
1st
19th
Pernicious Numbers
1st
11th
Pernicious Numbers (Long)
4th
Prime Numbers
1st
178th
Prime Numbers (Long)
1st
38th
Proximity Grid
2nd
Quine
21st
51st
Recamán
7th
Reverse Polish Notation
19th
4th
47th
8th
28th
Rule 110
9th
1st
Seven Segment
5th
Sierpiński Triangle
2nd
Smith Numbers
1st
Sudoku v2
2nd
Tongue-twisters
2nd
39th
Vampire Numbers
1st
44th
Van Eck Sequence
6th
π
1st
126th
τ
1st
φ
1st
√2
1st
𝑒
1st