12 Days of Christmas
10th15th45th21st22nd13th
18th6th
9th
12th10th28th8th
9th28th41st
9th7th9th6th
17th
81st
55th
8th
25th11th
16th
24 Game
8th
7th
8th
6th
7th
99 Bottles of Beer
23rd
55th
19th
9th
33rd
5th
10th
77th
17th
Abundant Numbers
17th
20th
14th
26th
8th
Abundant Numbers (Long)
22nd
19th
12th
27th
Arabic to Roman
11th1st
22nd
15th
Arithmetic Numbers
24th
89th
23rd
Arrows
18th
46th
Ascending Primes
8th
10th28th
2nd
7th
43rd
16th
1st
ASCII Table
8th
19th
44th
1st
9th
1st
34th
brainfuck
20th
19th
55th
Catalan Numbers
25th
8th
1st
Catalan’s Constant
14th
20th
1st
5th
84th
Christmas Trees
29th
20th
50th
9th
84th
26th
Collatz
27th
4th
107th
CSS Colors
21st
1st5th
28th
64th
Cubes
13th
9th
72nd
4th
18th
6th
Day of Week
30th
1st
77th
DFA Simulator
18th
35th
Diamonds
21st
7th
61st
30th
7th
16th
93rd
Divisors
11th
25th
33rd
17th
1st
33rd
Emirp Numbers
11th
6th
17th
32nd
Emirp Numbers (Long)
27th
7th
113th
14th
31st
Emojify
16th
4th
40th
Evil Numbers
5th
65th
1st
12th
1st
23rd
13th
Evil Numbers (Long)
17th
35th
1st
15th
33rd
11th
Factorial Factorisation
9th
10th
14th
21st
23rd
Farey Sequence
13th
19th
15th
Fibonacci
30th
9th
27th8th127th53rd
3rd
30th
1st36th
25th
1st1st32nd
1st
41st27th27th
1st
29th
7th60th
31st
1st
Fizz Buzz
55th
1st
1st
1st
9th
9th
1st
79th
Foo Fizz Buzz Bar
26th
12th
1st
Forsyth–Edwards Notation
18th
36th
Fractions
26th
14th
59th
1st
Game of Life
22nd
6th
68th
Gijswijt’s Sequence
15th
47th
Happy Numbers
8th
62nd
9th
1st
9th
Happy Numbers (Long)
15th
8th
17th
Hexdump
13th
7th
1st
Intersection
23rd
22nd
56th
6th
Inventory Sequence
9th
19th
8th
41st
ISBN
9th
30th
18th
Jacobi Symbol
19th
1st
66th
Kolakoski Constant
14th
13th
5th
37th
3rd
7th
Kolakoski Sequence
23rd
19th
7th
70th
48th
Leap Years
5th
13th
5th
1st
19th
5th
74th
13th
65th
Levenshtein Distance
37th
1st
1st
20th13th
21st
Leyland Numbers
4th
8th
7th
ln 2
1st
1st
1st
Look and Say
16th
103rd
9th
14th
21st
Lucky Numbers
14th
58th
7th
7th
20th
Lucky Tickets
19th
46th
Mahjong
Maze
19th
58th
Medal Tally
9th
8th
Morse Decoder
21st
64th
Morse Encoder
2nd
2nd
Musical Chords
12th16th
15th
6th
40th
Niven Numbers
20th
1st
39th
18th
1st
Niven Numbers (Long)
17th
34th
12th
37th
Number Spiral
13th9th
15th
18th
17th
5th
36th
5th
Odious Numbers
4th
54th
1st
12th
1st
19th
Odious Numbers (Long)
5th
32nd
1st
13th
1st
11th
Ordinal Numbers
13th
4th
1st
Pangram Grep
21st
26th50th
44th
221st
12th
41st
36th
17th
98th
34th
Pascal’s Triangle
27th
11th
1st
13th45th
1st
17th
Pernicious Numbers
38th
1st
15th
178th
46th
Pernicious Numbers (Long)
29th
1st
10th
87th
17th
Poker
7th
13th
Prime Numbers
11th
40th27th
18th
1st
12th
1st
27th
7th
Prime Numbers (Long)
19th
20th
1st
14th
48th
Proximity Grid
22nd
75th
QR Decoder
15th
39th
Quine
1st19th23rd1st19th9th2nd99th133rd73rd21st12th2nd1st22nd28th4th1st12th27th1st
1st
75th3rd4th9th74th182nd64th
1st21st1st1st1st57th
38th1st4th77th
1st101st
5th1st8th12th6th27th
25th25th
Recamán
13th
8th
4th
Repeating Decimals
1st
Reverse Polish Notation
24th
1st
62nd
93rd
Rijndael S-box
36th
13th
7th
4th
24th
2nd
Rock-paper-scissors-Spock-lizard
16th
16th
114th
76th
Roman to Arabic
22nd
7th
32nd
13th
Rule 110
12th26th
11th
9th
21st
37th
Seven Segment
17th
34th
17th
SI Units
6th
14th
Sierpiński Triangle
10th31st
13th
18th
8th
39th
12th
Smith Numbers
9th
15th
8th
31st
Spelling Numbers
29th1st
136th
Star Wars Opening Crawl
18th
40th
17th
Sudoku
8th
13th
Sudoku (Fill-in)
15th
46th
Ten-pin Bowling
17th
44th
Time Distance
15th
20th
Tongue-twisters
12th
12th
30th
6th
17th
15th
4th
10th
United States
12th
11th1st
Vampire Numbers
6th
5th
18th
Van Eck Sequence
6th
8th
12th
57th
8th
1st
6th
Zodiac Signs
24th
84th
γ
12th
1st
6th
5th
λ
21st
9th
10th32nd
48th4th
6th
21st
3rd
5th
π
24th
9th
1st
6th
4th25th
13th
20th
6th
τ
20th
16th
46th
6th
4th
40th
5th
φ
14th
33rd
1st
6th
1st
165th
5th
√2
25th
1st
6th
1st
1st
5th
𝑒
24th
1st
1st
5th
26th
1st32nd15th
6th