12 Days of Christmas
50th
24 Game
9th
99 Bottles of Beer
72nd
20th
Abundant Numbers
27th
Abundant Numbers (Long)
35th
Arabic to Roman
48th
46th
Arithmetic Numbers
23rd
Arrows
19th
34th
22nd
19th
21st
Ascending Primes
25th
ASCII Table
24th
Billiards
13th
brainfuck
26th
Card Number Validation
15th
Catalan Numbers
31st
Catalan’s Constant
21st
Christmas Trees
39th
Collatz
34th
CSS Colors
5th
18th
Cubes
28th
Day of Week
44th
DFA Simulator
10th
Diamonds
48th
40th
110th
Divisors
33rd
Emirp Numbers
41st
Emirp Numbers (Long)
24th
Emojify
35th
Evil Numbers
29th31st55th29th19th46th240th128th114th33rd40th55th48th50th35th34th28th33rd31st20th31st83rd54th99th
72nd26th29th440th62nd64th55th38th24th36th71st117th109th32nd1,271st27th78th190th115th16th34th31st
11th
Evil Numbers (Long)
24th
Factorial Factorisation
19th
31st
Farey Sequence
24th
Fibonacci
72nd
Fizz Buzz
31st1,379th
Foo Fizz Buzz Bar
36th
Forsyth–Edwards Notation
19th
Fractions
36th
Game of Life
28th
23rd
Gijswijt’s Sequence
14th
Happy Numbers
81st
31st
633rd
Happy Numbers (Long)
23rd
Hexdump
21st
Hilbert Curve
16th
Intersection
21st
Inventory Sequence
23rd
ISBN
74th
30th
Jacobi Symbol
19th
Kaprekar Numbers
17th
Kolakoski Constant
14th
Kolakoski Sequence
27th
Leap Years
30th
Levenshtein Distance
25th
16th
15th16th
Leyland Numbers
30th
ln 2
15th
Look and Say
26th
19th
Lucky Numbers
77th
16th
Lucky Tickets
15th
Mandelbrot
14th
Maze
13th
Medal Tally
14th
Minesweeper
11th
Morse Decoder
14th
Morse Encoder
15th
Musical Chords
19th33rd
16th
N Queens
23rd
Niven Numbers
31st
Niven Numbers (Long)
23rd
Number Spiral
20th
Odious Numbers
29th
Odious Numbers (Long)
19th
Ordinal Numbers
17th
Pangram Grep
56th
60th
29th232nd
16th
624th
102nd
17th44th41st
20th
Partition Numbers
26th
Pascal’s Triangle
47th
104th
Pernicious Numbers
60th
Pernicious Numbers (Long)
40th
Poker
12th
Polyominoes
16th
Prime Numbers
33rd
Prime Numbers (Long)
31st
Proximity Grid
11th
Quine
64th
1st
677th
Recamán
27th
Repeating Decimals
13th
Reverse Polish Notation
17th
Rijndael S-box
48th
21st
Rock-paper-scissors-Spock-lizard
25th
Roman to Arabic
52nd
26th
31st
7th
ROT13
21st
Rule 110
31st
Scrambled Sort
19th
19th
13th
20th
Seven Segment
63rd
27th
SI Units
9th
9th
Sierpiński Triangle
32nd
Smith Numbers
20th
Spelling Numbers
18th
Ten-pin Bowling
16th
Tic-tac-toe
15th
Time Distance
12th
Tongue-twisters
21st
Tower of Hanoi
17th
20th
11th
13th31st20th
32nd
18th
18th
126th
Transpose Sentence
14th
Trinomial Triangle
20th
United States
23rd
10th
Vampire Numbers
30th
Van Eck Sequence
28th
Zeckendorf Representation
17th
Zodiac Signs
17th
149th
10th
γ
13th
λ
45th
35th
65th
19th
π
36th
τ
29th
φ
18th
√2
24th
𝑒
25th
43rd