12 Days of Christmas
3rd
120th
99 Bottles of Beer
2nd
102nd
Abundant Numbers
1st
11th
Abundant Numbers (Long)
1st
57th
Arabic to Roman
Arithmetic Numbers
4th
Ascending Primes
ASCII Table
2nd
41st
Catalan Numbers
1st
1st
Catalan’s Constant
1st
18th
Christmas Trees
1st
68th
Collatz
3rd
Cubes
💎
53rd
Diamonds
4th
18th
Divisors
1st
96th
Emirp Numbers
9th
10th
Emirp Numbers (Long)
7th
34th
Evil Numbers
5th
1st
6th
Evil Numbers (Long)
1st
1st
3rd
Farey Sequence
Fibonacci
1st
1st
Fizz Buzz
Foo Fizz Buzz Bar
1st
103rd
Fractions
1st
46th
Game of Life
Gijswijt’s Sequence
Happy Numbers
9th
35th
Happy Numbers (Long)
1st
51st
Hexdump
Intersection
1st
77th
Inventory Sequence
2nd
17th
ISBN
7th
61st
Jacobi Symbol
4th
Kolakoski Constant
💎
26th
Kolakoski Sequence
1st
1st
Leap Years
1st
1st
Levenshtein Distance
3rd
Leyland Numbers
4th
72nd
Look and Say
1st
41st
Lucky Numbers
4th
23rd
Lucky Tickets
1st
29th
Niven Numbers
1st
1st
Niven Numbers (Long)
Number Spiral
5th
25th
Odious Numbers
5th
1st
1st
Odious Numbers (Long)
1st
1st
Ordinal Numbers
1st
68th
2nd
Pangram Grep
1st
74th
Pascal’s Triangle
3rd
33rd
Pernicious Numbers
5th
1st
Pernicious Numbers (Long)
1st
21st
Prime Numbers
1st
1st
9th
Prime Numbers (Long)
1st
1st
Quine
1st
1st
Recamán
1st
45th
Repeating Decimals
Reverse Polish Notation
1st
53rd
Rijndael S-box
Roman to Arabic
1st
48th
Rule 110
3rd
19th
Seven Segment
Sierpiński Triangle
1st
14th
Smith Numbers
Spelling Numbers
5th
38th
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
3rd
47th
Van Eck Sequence
5th
35th
π
5th
33rd
τ
4th
33rd
φ
1st
25th
√2
1st
1st
𝑒
2nd
1st