12 Days of Christmas
28th
99 Bottles of Beer
11th
Abundant Numbers
9th
Abundant Numbers (Long)
8th
Alphabetic Numbers
16th
Arabic to Roman
1st
Arithmetic Numbers
9th
Arrows
10th
Ascending Primes
7th
ASCII Table
13th
Card Number Validation
8th
Catalan Numbers
1st
Catalan’s Constant
11th
Christmas Trees
9th
Collatz
12th
Cubes
7th
Day of Week
7th
Diamonds
10th
Divisors
13th
Emirp Numbers
23rd
Emirp Numbers (Long)
7th
95th
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
7th
Farey Sequence
14th
Fibonacci
38th
Fizz Buzz
52nd
1st
580th
Foo Fizz Buzz Bar
9th
126th
Fractions
12th
Gijswijt’s Sequence
171st
Happy Numbers
28th
Happy Numbers (Long)
14th
Intersection
8th
Inventory Sequence
9th
ISBN
10th
Jacobi Symbol
8th
Kolakoski Constant
11th
Kolakoski Sequence
10th
Leap Years
13th
Levenshtein Distance
7th
Leyland Numbers
12th
Look and Say
9th
Lucky Numbers
12th
Morse Decoder
8th
Morse Encoder
5th
N Queens
5th
Niven Numbers
30th
Niven Numbers (Long)
10th
Number Spiral
9th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
12th
PalindromemordnilaP
8th
Pangram Grep
5th
Pascal’s Triangle
20th
Pernicious Numbers
26th
Pernicious Numbers (Long)
16th
Prime Numbers
29th
Prime Numbers (Long)
10th
Quine
1st223rd26th221st157th65th86th25th26th1st80th65th95th329th1st151st24th28th1st90th43rd75th28th47th
Recamán
10th
Reverse Polish Notation
8th
Roman to Arabic
9th
Scrambled Sort
7th
Seven Segment
9th
Sierpiński Triangle
10th
Smith Numbers
6th
Spelling Numbers
1st
Star Wars Opening Crawl
5th
Tic-tac-toe
4th
Time Distance
6th
Tongue-twisters
9th
Transpose Sentence
7th
Ulam Sequence
3rd
United States
8th
Van Eck Sequence
9th
λ
14th
π
18th
τ
19th
φ
34th
√2
12th
𝑒
19th