12 Days of Christmas
4th
99 Bottles of Beer
Abundant Numbers
20th
Arabic to Roman
7th
Ascending Primes
ASCII Table
2nd
395th
brainfuck
Catalan Numbers
1st
Christmas Trees
Collatz
2nd
Diamonds
1st
Divisors
1st1st
15th1st
Emirp Numbers
699th
Emirp Numbers (Long)
Emojify
Evil Numbers
1st
Evil Numbers (Long)
Factorial Factorisation
2nd
Farey Sequence
1st
Fibonacci
31st1st
29th1st
Fizz Buzz
4th
2,310th
Foo Fizz Buzz Bar
4th
Fractions
2nd
Happy Numbers
101st
Happy Numbers (Long)
Hexdump
3rd
Intersection
6th
Inventory Sequence
1st
ISBN
17th6th
19th
Kolakoski Constant
Kolakoski Sequence
1st
Leap Years
960th
Levenshtein Distance
2nd
6th65th
Leyland Numbers
1st
111th
Look and Say
Lucky Numbers
17th4th
69th
Lucky Tickets
8th
7th91st
Morse Decoder
Niven Numbers
35th
Niven Numbers (Long)
Number Spiral
11th
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
2nd
390th
PalindromemordnilaP
3rd
Pangram Grep
Pascal’s Triangle
1st
28th
Pernicious Numbers
1st
18th
Pernicious Numbers (Long)
1st
Prime Numbers
1st
221st
Prime Numbers (Long)
1st
42nd
Proximity Grid
2nd
Quine
57th
Recamán
2nd
Reverse Polish Notation
19th4th60th11th35th
ROT13
1st
Rule 110
9th
Seven Segment
5th
Sierpiński Triangle
2nd
Smith Numbers
Sudoku (Fill-in)
2nd
Tongue-twisters
2nd
39th
United States
Vampire Numbers
1st
49th
Van Eck Sequence
6th
π
1st
149th
τ
1st
φ
1st
√2
1st
𝑒
1st