12 Days of Christmas
10th
24 Game
12th
99 Bottles of Beer
19th
Abundant Numbers
12th
Abundant Numbers (Long)
11th
Arabic to Roman
24th
Arithmetic Numbers
12th
Arrows
6th
Ascending Primes
21st
ASCII Table
15th
Billiards
12th
brainfuck
24th
Card Number Validation
16th
Catalan Numbers
42nd
Catalan’s Constant
12th
Christmas Trees
42nd
Collatz
29th
CSS Colors
7th
Cubes
16th
Day of Week
1st
DFA Simulator
9th
Diamonds
14th
Divisors
23rd
Emirp Numbers
12th
Emirp Numbers (Long)
8th
Emojify
2nd
Evil Numbers
15th
Evil Numbers (Long)
13th
Factorial Factorisation
15th
Farey Sequence
32nd
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
12th
Forsyth–Edwards Notation
11th
Fractions
18th
Game of Life
9th
Gijswijt’s Sequence
19th
Happy Numbers
10th
Happy Numbers (Long)
10th
Hexdump
15th
Intersection
23rd
Inventory Sequence
4th
ISBN
23rd
Jacobi Symbol
26th
Kaprekar Numbers
Kolakoski Constant
17th
Kolakoski Sequence
20th
Leap Years
1st
Levenshtein Distance
56th
Leyland Numbers
28th
ln 2
26th
Look and Say
85th
Lucky Numbers
8th
Lucky Tickets
29th
Mahjong
7th
Maze
21st
Medal Tally
5th
Morse Decoder
8th
Morse Encoder
5th
Musical Chords
28th
N Queens
13th
Niven Numbers
1st
Niven Numbers (Long)
1st
Number Spiral
30th
Odious Numbers
11th
Odious Numbers (Long)
11th
Ordinal Numbers
1st
PalindromemordnilaP
14th
Pangram Grep
11th
Pascal’s Triangle
41st
Pernicious Numbers
1st
Pernicious Numbers (Long)
8th
Poker
15th
Polyominoes
9th
Prime Numbers
1st
Prime Numbers (Long)
40th
Proximity Grid
16th
QR Decoder
20th
Quine
1st
Recamán
1st
Repeating Decimals
11th
Reverse Polish Notation
48th
Reversi
12th
Rijndael S-box
13th
Rock-paper-scissors-Spock-lizard
1st
Roman to Arabic
17th
ROT13
16th
Rule 110
16th
Set
14th
Seven Segment
32nd
SI Units
3rd
Sierpiński Triangle
36th
Smith Numbers
38th
Spelling Numbers
18th
Star Wars Opening Crawl
17th
Sudoku
8th
Sudoku (Fill-in)
12th
Ten-pin Bowling
14th
Tic-tac-toe
34th
Time Distance
7th
Tongue-twisters
14th
Transpose Sentence
14th
United States
4th
Vampire Numbers
14th
Van Eck Sequence
23rd
Zeckendorf Representation
9th
Zodiac Signs
8th
γ
14th
λ
28th
π
15th
τ
13th
φ
43rd
√2
53rd
𝑒
1st