12 Days of Christmas
12th
24 Game
5th
99 Bottles of Beer
20th
34th
Abundant Numbers
13th
62nd
32nd
Abundant Numbers (Long)
7th
Arabic to Roman
Arithmetic Numbers
6th
Arrows
Ascending Primes
5th
ASCII Table
14th
42nd
brainfuck
Card Number Validation
Catalan Numbers
6th
Catalan’s Constant
6th
Christmas Trees
23rd
Collatz
9th
49th
CSS Colors
Cubes
19th
Day of Week
DFA Simulator
Diamonds
17th
Divisors
17th
42nd
18th
19th
57th
97th
1st
Emirp Numbers
12th
Emirp Numbers (Long)
8th
Emojify
Evil Numbers
11th
46th
37th
1st
22nd
216th
15th
Evil Numbers (Long)
8th
50th
25th
1st
Factorial Factorisation
3rd
14th
6th
Farey Sequence
3rd
27th
Fibonacci
17th
166th
18th
34th
145th
147th
7th
Fizz Buzz
88th
247th
27th
60th
347th
34th
78th
Foo Fizz Buzz Bar
12th
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
6th
Happy Numbers
8th
41st
Happy Numbers (Long)
8th
43rd
Hexdump
Intersection
Inventory Sequence
6th
26th
ISBN
Jacobi Symbol
Kaprekar Numbers
3rd
17th
8th
Kolakoski Constant
6th
Kolakoski Sequence
14th
Leap Years
16th
47th
22nd
Levenshtein Distance
Leyland Numbers
6th
ln 2
7th
Look and Say
10th
Lucky Numbers
4th
Lucky Tickets
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
3rd
16th
Niven Numbers
16th
37th
14th
Niven Numbers (Long)
7th
Number Spiral
7th
Odious Numbers
12th
45th
32nd
1st
21st
122nd
14th
Odious Numbers (Long)
7th
42nd
21st
1st
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
7th
63rd
Pernicious Numbers
9th
43rd
Pernicious Numbers (Long)
7th
26th
Poker
Polyominoes
Prime Numbers
10th
105th
27th
30th
65th
63rd
14th
Prime Numbers (Long)
8th
64th
16th
Proximity Grid
QR Decoder
Quine
Recamán
11th
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
5th
20th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
16th
Seven Segment
SI Units
Sierpiński Triangle
8th
38th
Smith Numbers
4th
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
5th
Transpose Sentence
United States
Vampire Numbers
4th
Van Eck Sequence
4th
Zeckendorf Representation
Zodiac Signs
γ
6th
λ
12th
π
12th
51st
21st
τ
11th
φ
12th
√2
12th
𝑒
13th
44th