12 Days of Christmas
17th
99 Bottles of Beer
7th
Abundant Numbers
5th
Abundant Numbers (Long)
4th
Arabic to Roman
1st
Arithmetic Numbers
5th
Arrows
5th
ASCII Table
6th
Catalan Numbers
5th
Catalan’s Constant
7th
Christmas Trees
5th
Collatz
5th
Cubes
5th
Diamonds
6th
Divisors
8th
Emirp Numbers
19th
Emirp Numbers (Long)
59th
2nd
Evil Numbers
1st
Evil Numbers (Long)
1st
Farey Sequence
5th
Fibonacci
21st
Fizz Buzz
1st
44th
Foo Fizz Buzz Bar
78th
5th
Fractions
4th
Gijswijt’s Sequence
96th
Happy Numbers
21st
Happy Numbers (Long)
10th
Intersection
5th
Inventory Sequence
3rd
ISBN
5th
Jacobi Symbol
5th
Kolakoski Constant
7th
Kolakoski Sequence
6th
Leap Years
8th
Levenshtein Distance
3rd
Leyland Numbers
5th
Look and Say
5th
Lucky Numbers
7th
Morse Decoder
4th
Morse Encoder
2nd
Niven Numbers
19th
Niven Numbers (Long)
5th
Number Spiral
4th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
6th
Pangram Grep
💎
Pascal’s Triangle
12th
Pernicious Numbers
18th
Pernicious Numbers (Long)
9th
Prime Numbers
18th
Prime Numbers (Long)
5th
Quine
1st
184th
23rd
166th
124th
43rd
17th
21st
15th
68th
51st
63rd
271st
1st
63rd
118th
16th
21st
1st
52nd
36th
59th
1st
43rd
Recamán
5th
Reverse Polish Notation
4th
Roman to Arabic
4th
Seven Segment
6th
Sierpiński Triangle
6th
Smith Numbers
3rd
Spelling Numbers
1st
Star Wars Opening Crawl
2nd
Time Distance
3rd
Tongue-twisters
5th
United States
4th
Van Eck Sequence
4th
λ
9th
π
12th
τ
13th
φ
21st
√2
4th
𝑒
13th