12 Days of Christmas
4th
99 Bottles of Beer
Abundant Numbers
21st
Arabic to Roman
7th
Ascending Primes
ASCII Table
3rd
450th
brainfuck
Catalan Numbers
1st
Christmas Trees
Collatz
2nd
Diamonds
2nd
Divisors
1st1st
17th1st
Emirp Numbers
748th
Emirp Numbers (Long)
Emojify
Evil Numbers
1st
Evil Numbers (Long)
Factorial Factorisation
3rd
Farey Sequence
1st
Fibonacci
34th1st
34th1st
Fizz Buzz
4th
2,418th
Foo Fizz Buzz Bar
4th
Fractions
2nd
Happy Numbers
119th
Happy Numbers (Long)
Hexdump
3rd
Intersection
7th
Inventory Sequence
1st
ISBN
17th6th
19th
Kolakoski Constant
Kolakoski Sequence
1st
Leap Years
1,027th
Levenshtein Distance
2nd
7th78th
Leyland Numbers
1st
126th
Look and Say
Lucky Numbers
18th4th
75th
Lucky Tickets
8th
9th112th
Morse Decoder
Niven Numbers
36th
Niven Numbers (Long)
Number Spiral
12th
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
2nd
421st
PalindromemordnilaP
4th
Pangram Grep
Pascal’s Triangle
1st
30th
Pernicious Numbers
1st
20th
Pernicious Numbers (Long)
1st
Prime Numbers
1st
246th
Prime Numbers (Long)
1st
50th
Proximity Grid
2nd
Quine
1st
72nd
Recamán
3rd
Reverse Polish Notation
20th4th63rd12th41st
ROT13
1st
Rule 110
10th
Seven Segment
6th
Sierpiński Triangle
2nd
Smith Numbers
Sudoku (Fill-in)
2nd
Tongue-twisters
2nd
44th
United States
Vampire Numbers
1st
54th
Van Eck Sequence
6th
π
1st
170th
τ
1st
φ
1st
√2
1st
𝑒
1st