12 Days of Christmas
4th
154th
99 Bottles of Beer
2nd
124th
Abundant Numbers
1st
13th
Abundant Numbers (Long)
1st
75th
Arabic to Roman
69th
Arithmetic Numbers
4th
Ascending Primes
18th
ASCII Table
1st
52nd
Billiards
22nd
Card Number Validation
32nd
Catalan Numbers
1st
1st
Catalan’s Constant
1st
24th
Christmas Trees
1st
79th
Collatz
2nd
106th
Cubes
💎
68th
Diamonds
4th
20th
Divisors
1st
118th
Emirp Numbers
9th
15th
Emirp Numbers (Long)
8th
44th
Evil Numbers
6th
1st8th
Evil Numbers (Long)
1st
1st4th
Factorial Factorisation
2nd
31st
Farey Sequence
37th
Fibonacci
1st
1st
Fizz Buzz
199th295th
Foo Fizz Buzz Bar
1st
133rd
Fractions
1st
60th
Game of Life
44th
Gijswijt’s Sequence
37th
Happy Numbers
12th
50th
Happy Numbers (Long)
1st
68th
Hexdump
52nd
Intersection
1st
89th
Inventory Sequence
2nd
24th
ISBN
8th
74th
Jacobi Symbol
4th
Kolakoski Constant
💎
34th
Kolakoski Sequence
1st
3rd
Leap Years
1st
1st
Levenshtein Distance
3rd
Leyland Numbers
4th
86th
Look and Say
1st
54th
Lucky Numbers
7th
31st
Lucky Tickets
1st
41st
Niven Numbers
1st
1st
Niven Numbers (Long)
1st
Number Spiral
5th
33rd
Odious Numbers
6th
1st1st
Odious Numbers (Long)
1st
1st
Ordinal Numbers
1st
81st4th
PalindromemordnilaP
1st3rd46th
Pangram Grep
1st
92nd
Pascal’s Triangle
3rd
45th
Pernicious Numbers
5th
1st
Pernicious Numbers (Long)
1st
30th
Prime Numbers
1st
1st13th
Prime Numbers (Long)
1st
1st
Quine
1st
1st
Recamán
1st
59th
Repeating Decimals
23rd
Reverse Polish Notation
1st
64th
Rijndael S-box
28th
Roman to Arabic
1st
62nd
ROT13
1st
55th
Rule 110
3rd
27th
Seven Segment
68th
Sierpiński Triangle
1st
17th
Smith Numbers
57th
Spelling Numbers
6th
48th
Tic-tac-toe
1st
27th
Tongue-twisters
94th
Tower of Hanoi
12th
Transpose Sentence
49th
United States
Vampire Numbers
3rd
56th
Van Eck Sequence
5th
45th
Zeckendorf Representation
43rd
π
5th
48th
τ
4th
47th
φ
1st
34th
√2
1st
1st
𝑒
2nd
1st