12 Days of Christmas
4th
99 Bottles of Beer
Abundant Numbers
21st
Arabic to Roman
7th
Ascending Primes
ASCII Table
3rd
464th
brainfuck
Catalan Numbers
1st
Christmas Trees
3rd
Collatz
2nd
Diamonds
2nd
Divisors
1st1st
17th1st
Emirp Numbers
756th
Emirp Numbers (Long)
Emojify
Evil Numbers
1st
Evil Numbers (Long)
Factorial Factorisation
3rd
Farey Sequence
1st
Fibonacci
36th1st
35th1st
Fizz Buzz
5th
2,444th
Foo Fizz Buzz Bar
5th
Fractions
2nd
Happy Numbers
124th
Happy Numbers (Long)
Hexdump
3rd
Intersection
7th
Inventory Sequence
1st
ISBN
18th7th
20th
Kolakoski Constant
Kolakoski Sequence
1st
Leap Years
1,039th
Levenshtein Distance
2nd
7th85th
Leyland Numbers
1st
129th
Look and Say
Lucky Numbers
18th4th
82nd
Lucky Tickets
9th
10th114th
Morse Decoder
Niven Numbers
38th
Niven Numbers (Long)
Number Spiral
12th
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
2nd
436th
PalindromemordnilaP
4th
Pangram Grep
Pascal’s Triangle
1st
32nd
Pernicious Numbers
1st
21st
Pernicious Numbers (Long)
1st
Prime Numbers
1st
258th
Prime Numbers (Long)
1st
56th
Proximity Grid
2nd
Quine
1st
75th
Recamán
3rd
Reverse Polish Notation
20th4th66th12th44th
ROT13
1st
Rule 110
10th
Seven Segment
6th
Sierpiński Triangle
2nd
Smith Numbers
3rd
Sudoku (Fill-in)
2nd
Tongue-twisters
2nd
47th
United States
Vampire Numbers
1st
62nd
Van Eck Sequence
7th
π
1st
178th
τ
1st
φ
1st
√2
1st
𝑒
1st