12 Days of Christmas
10th15th42nd26th23rd13th
7th3rd
10th
12th10th28th8th
9th29th87th
10th13th9th6th
18th
87th
16th
12th
34th11th
16th
24 Game
8th
7th
7th
4th
7th
99 Bottles of Beer
23rd
54th
27th
10th
16th
5th
4th
22nd
18th
Abundant Numbers
10th
20th
14th
27th
8th
Abundant Numbers (Long)
28th
19th
12th
13th
Arabic to Roman
20th1st
43rd
12th
Arithmetic Numbers
6th
88th
11th
Arrows
12th
26th
Ascending Primes
8th
10th28th
2nd
7th
42nd
16th
1st
ASCII Table
19th
44th
1st
9th
1st
16th
brainfuck
20th
10th
20th
Catalan Numbers
25th
8th
1st
Catalan’s Constant
14th
17th
1st
5th
53rd
Christmas Trees
29th
15th
50th
9th
44th
25th
Collatz
31st
7th
94th
CSS Colors
18th
1st5th
28th
38th
Cubes
13th
5th
75th
4th
10th
6th
Day of Week
19th
1st
34th
DFA Simulator
10th
14th
Diamonds
21st
6th
61st
30th
7th
14th
92nd
Divisors
11th
25th
35th
17th
1st
25th
Emirp Numbers
16th
6th
12th
27th
Emirp Numbers (Long)
13th
7th
39th
16th
31st
Emojify
12th
4th
26th
Evil Numbers
8th
65th
1st
12th
1st
21st
13th
Evil Numbers (Long)
17th
34th
1st
15th
33rd
16th
Factorial Factorisation
9th
6th
14th
12th
25th
Farey Sequence
9th
16th
15th
Fibonacci
36th
9th
27th47th126th52nd
5th
30th
19th36th
29th
1st1st32nd
1st
41st27th27th
1st
55th
7th60th
31st
1st
Fizz Buzz
55th
13th
4th
1st
9th
9th
19th
78th
Foo Fizz Buzz Bar
9th
12th
16th
Forsyth–Edwards Notation
13th
20th
Fractions
14th
14th
27th
1st
Game of Life
13th
6th
27th
Gijswijt’s Sequence
11th
19th
Happy Numbers
10th
62nd
9th
30th
9th
Happy Numbers (Long)
21st
8th
13th
Hexdump
13th
6th
10th
Intersection
32nd
13th
23rd
6th
Inventory Sequence
9th
9th
8th
22nd
ISBN
9th
30th
10th
Jacobi Symbol
14th
1st
32nd
Kolakoski Constant
14th
8th
5th
24th
3rd
7th
Kolakoski Sequence
23rd
17th
7th
49th
48th
Leap Years
5th
13th
5th
1st
19th
5th
74th
13th
65th
Levenshtein Distance
36th
19th
15th
20th13th
21st
Leyland Numbers
1st
8th
1st
ln 2
1st
1st
1st
Look and Say
9th
103rd
9th
14th
10th
Lucky Numbers
10th
58th
8th
7th
12th
Lucky Tickets
15th
25th
Mahjong
Maze
12th
23rd
Medal Tally
16th
6th
Morse Decoder
16th
36th
Morse Encoder
3rd
2nd
Musical Chords
12th16th
13th
6th
24th
Niven Numbers
20th
19th
39th
17th
1st
Niven Numbers (Long)
17th
34th
12th
52nd
Number Spiral
13th9th
19th
19th
17th
5th
21st
5th
Odious Numbers
9th
54th
1st
12th
1st
24th
Odious Numbers (Long)
9th
31st
1st
13th
1st
16th
Ordinal Numbers
13th
3rd
1st
Pangram Grep
13th
26th50th
44th
220th
12th
40th
21st
18th
98th
34th
Pascal’s Triangle
27th
11th
1st
13th45th
17th
20th
Pernicious Numbers
38th
1st
15th
179th
35th
Pernicious Numbers (Long)
27th
1st
10th
58th
15th
Poker
5th
10th
Prime Numbers
11th
40th30th
16th
1st
12th
1st
18th
7th
Prime Numbers (Long)
19th
23rd
1st
13th
44th
Proximity Grid
17th
33rd
QR Decoder
10th
16th
Quine
1st23rd1st19th9th2nd97th133rd72nd21st12th8th1st22nd28th4th1st12th27th1st
1st
75th3rd4th9th74th182nd64th
1st21st1st1st1st57th
38th1st4th77th
1st101st
5th1st8th12th6th27th
25th25th
Recamán
8th
8th
15th
Repeating Decimals
4th
Reverse Polish Notation
26th
1st
63rd
53rd
Rijndael S-box
36th
8th
7th
5th
13th
2nd
Rock-paper-scissors-Spock-lizard
14th
14th
119th
34th
Roman to Arabic
8th
7th
20th
14th
Rule 110
12th26th
6th
9th
8th
38th
Seven Segment
13th
22nd
17th
SI Units
5th
7th
Sierpiński Triangle
10th30th
9th
18th
8th
27th
13th
Smith Numbers
9th
9th
8th
16th
Spelling Numbers
20th1st
38th
Star Wars Opening Crawl
10th
15th
19th
Sudoku
4th
6th
Sudoku (Fill-in)
9th
19th
Ten-pin Bowling
9th
23rd
Time Distance
8th
11th
Tongue-twisters
12th
15th
9th
16th
25th
4th
16th
United States
8th
9th1st
Vampire Numbers
2nd
5th
5th
Van Eck Sequence
6th
7th
12th
57th
8th
1st
6th
Zodiac Signs
13th
30th
γ
12th
1st
6th
4th
λ
21st
9th
7th32nd
48th4th
6th
12th
3rd
5th
π
24th
11th
1st
6th
4th26th
9th
22nd
6th
τ
20th
14th
46th
6th
4th
26th
5th
φ
14th
35th
1st
6th
1st
189th
5th
√2
25th
1st
6th
1st
1st
5th
𝑒
24th
1st
1st
5th
26th
1st32nd15th
6th