12 Days of Christmas
3rd
133rd
99 Bottles of Beer
2nd
111th
Abundant Numbers
1st
12th
Abundant Numbers (Long)
1st
61st
Arabic to Roman
64th
Arithmetic Numbers
4th
Ascending Primes
13th
ASCII Table
1st
47th
Billiards
12th
Card Number Validation
22nd
Catalan Numbers
1st
1st
Catalan’s Constant
1st
22nd
Christmas Trees
1st
74th
Collatz
2nd
Cubes
💎
62nd
Diamonds
4th
19th
Divisors
1st
102nd
Emirp Numbers
9th
11th
Emirp Numbers (Long)
7th
37th
Evil Numbers
6th
1st6th
Evil Numbers (Long)
1st
1st3rd
Factorial Factorisation
💎
24th
Farey Sequence
29th
Fibonacci
1st
1st
Fizz Buzz
171st286th
Foo Fizz Buzz Bar
1st
112th
Fractions
1st
52nd
Game of Life
38th
Gijswijt’s Sequence
32nd
Happy Numbers
11th
38th
Happy Numbers (Long)
1st
57th
Hexdump
42nd
Intersection
1st
83rd
Inventory Sequence
2nd
21st
ISBN
7th
67th
Jacobi Symbol
4th
Kolakoski Constant
💎
28th
Kolakoski Sequence
1st
2nd
Leap Years
1st
1st
Levenshtein Distance
3rd
Leyland Numbers
4th
78th
Look and Say
1st
46th
Lucky Numbers
7th
28th
Lucky Tickets
1st
33rd
Niven Numbers
1st
1st
Niven Numbers (Long)
1st
Number Spiral
5th
28th
Odious Numbers
6th
1st1st
Odious Numbers (Long)
1st
1st
Ordinal Numbers
1st
74th3rd
PalindromemordnilaP
1st3rd34th
Pangram Grep
1st
79th
Pascal’s Triangle
3rd
35th
Pernicious Numbers
5th
1st
Pernicious Numbers (Long)
1st
22nd
Prime Numbers
1st
1st10th
Prime Numbers (Long)
1st
1st
Quine
1st
1st
Recamán
1st
51st
Repeating Decimals
20th
Reverse Polish Notation
1st
58th
Rijndael S-box
24th
Roman to Arabic
1st
53rd
ROT13
1st
34th
Rule 110
3rd
23rd
Seven Segment
62nd
Sierpiński Triangle
1st
15th
Smith Numbers
50th
Spelling Numbers
5th
45th
Tic-tac-toe
1st
19th
Tongue-twisters
83rd
Transpose Sentence
41st
United States
Vampire Numbers
3rd
50th
Van Eck Sequence
5th
36th
Zeckendorf Representation
36th
π
5th
44th
τ
4th
43rd
φ
1st
27th
√2
1st
1st
𝑒
2nd
1st