12 Days of Christmas
61st
24 Game
21st
99 Bottles of Beer
23rd
48th
Abundant Numbers
26th
14th
Alphabetic Numbers
9th
Arabic to Roman
23rd
Arithmetic Numbers
15th
27th
Arrows
11th
88th
20th
Ascending Primes
10th15th
ASCII Table
8th
11th
151st
25th
Calendar
98th
10th
Card Number Validation
73rd9th
13th
116th
21st
Catalan Numbers
38th
11th
238th
69th
Christmas Trees
9th
17th
198th
19th23rd
Collatz
40th
463rd
33rd
Continued Fractions
29th4th
5th
78th
15th
CSS Colors
39th
Cubes
12th
231st
24th
Day of Week
116th
154th
1st
Diamonds
41st
23rd
375th
53rd
Divisors
246th14th
33rd103rd527th
53rd46th
Emirp Numbers
54th41st
Emirp Numbers (Long)
18th
Emojify
163rd
25th
Evil Numbers
269th35th
31st35th281st
53rd35th
Evil Numbers (Long)
33rd
Factorial Factorisation
5th
6th30th
Farey Sequence
10th
169th
10th15th
Fibonacci
110th
Fizz Buzz
31st
83rd187th
Forsyth–Edwards Notation
6th
12th
20th
Fractions
13th
202nd
10th1st
Game of Life
22nd
Gray Code Decoder
26th
Gray Code Encoder
1st1st
13th32nd
5th1st
Happy Numbers
14th
56th
22nd28th
Happy Numbers (Long)
13th
Hexdump
9th
113th
26th
Intersection
42nd
ISBN
98th10th
19th22nd148th
28th
Kaprekar Numbers
26th
Kolakoski Constant
32nd
Kolakoski Sequence
52nd
Leap Years
7th19th19th256th92nd37th
20th60th14th92nd9th
33rd213th18th64th24th51st231st27th23rd41st76th9th22nd25th
Leyland Numbers
15th
246th
24th
ln 2
17th
Look and Say
27th
16th
Lucky Numbers
10th
29th
Medal Tally
6th
20th
Minesweeper
15th
Morse Decoder
39th
Morse Encoder
39th
Multitap Input
2nd
8th
48th
14th
Niven Numbers
28th
329th
46th
Number Spiral
9th
115th
27th
Odious Numbers
35th
33rd
Ordinal Numbers
9th
25th
21st
Pangram Grep
47th
20th
21st
279th
59th16th
Partition Numbers
33rd
Pascal’s Triangle
60th
10th
316th
66th
Pernicious Numbers
26th
34th
116th
34th43rd
Pernicious Numbers (Long)
36th
Polyominoes
19th
Prime Numbers
78th
34th
52nd
93rd
19th27th
Prime Numbers (Long)
17th36th
Recamán
15th
345th
42nd
Repeating Decimals
24th
Reverse Polish Notation
12th
163rd
30th
Rijndael S-box
26th
Rock-paper-scissors-Spock-lizard
7th
23rd
Roman to Arabic
51st
ROT13
9th
15th26th
10th16th
Rule 110
32nd
Scrambled Sort
7th
5th
Set
97th
15th
Seven Segment
12th
265th
37th
SI Units
15th
Sierpiński Triangle
45th
Smith Numbers
43rd
Spelling Numbers
30th
Star Wars GPT
4th
21st
Taxicab Numbers
23rd
Tic-tac-toe
7th
28th
Time Distance
22nd
Tongue-twisters
15th
35th
Tower of Hanoi
30th
Transpose Sentence
10th
22nd
Trinomial Triangle
8th
21st
United States
37th
Zeckendorf Representation
23rd
Zodiac Signs
141st
25th
φ
41st
√2
33rd
𝑒
37th