12 Days of Christmas
4th
99 Bottles of Beer
Abundant Numbers
21st
Arabic to Roman
7th
Ascending Primes
ASCII Table
2nd
434th
brainfuck
Catalan Numbers
1st
Christmas Trees
Collatz
2nd
Diamonds
1st
Divisors
1st1st
15th1st
Emirp Numbers
734th
Emirp Numbers (Long)
Emojify
Evil Numbers
1st
Evil Numbers (Long)
Factorial Factorisation
3rd
Farey Sequence
1st
Fibonacci
34th1st
33rd1st
Fizz Buzz
4th
2,381st
Foo Fizz Buzz Bar
4th
Fractions
2nd
Happy Numbers
109th
Happy Numbers (Long)
Hexdump
3rd
Intersection
6th
Inventory Sequence
1st
ISBN
17th6th
19th
Kolakoski Constant
Kolakoski Sequence
1st
Leap Years
1,009th
Levenshtein Distance
2nd
7th76th
Leyland Numbers
1st
119th
Look and Say
Lucky Numbers
18th4th
72nd
Lucky Tickets
8th
7th102nd
Morse Decoder
Niven Numbers
36th
Niven Numbers (Long)
Number Spiral
12th
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
2nd
410th
PalindromemordnilaP
3rd
Pangram Grep
Pascal’s Triangle
1st
30th
Pernicious Numbers
1st
19th
Pernicious Numbers (Long)
1st
Prime Numbers
1st
237th
Prime Numbers (Long)
1st
48th
Proximity Grid
2nd
Quine
63rd
Recamán
2nd
Reverse Polish Notation
20th4th62nd12th39th
ROT13
1st
Rule 110
10th
Seven Segment
5th
Sierpiński Triangle
2nd
Smith Numbers
Sudoku (Fill-in)
2nd
Tongue-twisters
2nd
42nd
United States
Vampire Numbers
1st
51st
Van Eck Sequence
6th
π
1st
162nd
τ
1st
φ
1st
√2
1st
𝑒
1st