12 Days of Christmas
28th
16th
23rd
9th
47th
8th
99 Bottles of Beer
41st
26th
23rd
19th
63rd
Abundant Numbers
6th
11th
34th
14th
37th
22nd
9th
9th
17th
41st
49th
8th
Abundant Numbers (Long)
15th
15th
18th
8th
22nd
Arabic to Roman
21st
15th
20th
9th
55th
59th
Arithmetic Numbers
1st
Arrows
20th
18th
27th
Ascending Primes
19th
ASCII Table
41st
17th
3rd
134th
brainfuck
27th
10th
6th
37th
Catalan Numbers
27th
1st
1st
1st
Catalan’s Constant
9th
17th
Christmas Trees
10th
4th
3rd
11th
17th
131st
25th
Collatz
14th
3rd
12th
21st
3rd
1st
20th
29th
CSS Colors
5th
3rd
7th
12th
11th
Cubes
17th
6th
9th
104th
Day of Week
1st
Diamonds
31st
19th
12th
41st
26th
Divisors
12th
32nd
24th
18th
32nd
12th
22nd
1st
1st
35th
8th
Emirp Numbers
7th
22nd
12th
11th
12th
10th
20th
22nd
18th
6th
Emirp Numbers (Long)
11th
7th
11th
Emojify
11th
29th
Evil Numbers
18th
7th
10th
18th
43rd
7th
13th
1st
28th
7th
13th
Evil Numbers (Long)
22nd
12th
11th
29th
Factorial Factorisation
8th
Farey Sequence
21st
Fibonacci
29th
4th
31st
2nd
1st
1st
125th
23rd
1st
1st
38th
1st
6th
1st
14th
Fizz Buzz
6th
19th
124th
86th
56th
15th
87th
92nd
116th
1st
43rd
8th
88th
46th
1st
68th
11th
Foo Fizz Buzz Bar
48th
33rd
27th
38th
25th
12th
1st
27th
Forsyth–Edwards Notation
19th
Fractions
29th
24th
19th
92nd
1st
Game of Life
6th
Gijswijt’s Sequence
6th
Happy Numbers
2nd
36th
24th
17th
16th
38th
19th
9th
1st
39th
9th
Happy Numbers (Long)
20th
14th
5th
28th
6th
9th
23rd
30th
Hexdump
2nd
48th
Intersection
8th
14th
3rd
44th
Inventory Sequence
28th
20th
3rd
ISBN
10th
11th
5th
28th
Jacobi Symbol
9th
6th
7th
7th
23rd
Kolakoski Constant
4th
5th
2nd
12th
12th
Kolakoski Sequence
6th
5th
6th
5th
8th
96th
16th
4th
Leap Years
21st
4th
14th
3rd
11th
8th
12th
1st
15th
38th
106th
23rd
8th
13th
Levenshtein Distance
19th
8th
1st
10th
66th
1st
Leyland Numbers
12th
16th
31st
7th
142nd
33rd
ln 2
13th
48th
Look and Say
25th
9th
49th
44th
Lucky Numbers
15th
103rd
17th
Lucky Tickets
8th
9th
20th
11th
Maze
14th
Medal Tally
6th
Morse Decoder
6th
5th
12th
23rd
Morse Encoder
9th
5th
12th
6th
30th
Musical Chords
9th
Niven Numbers
33rd
29th
19th
20th
21st
24th
1st
21st
33rd
50th
23rd
16th
14th
Niven Numbers (Long)
25th
21st
1st
148th
Number Spiral
17th
9th
11th
47th
Odious Numbers
18th
7th
7th
16th
40th
7th
11th
1st
24th
7th
13th
Odious Numbers (Long)
16th
14th
10th
1st
Ordinal Numbers
25th
10th
26th
1st
21st
113th
Pangram Grep
22nd
9th
1st
36th
51st
Pascal’s Triangle
24th
11th
39th
13th
90th
Pernicious Numbers
1st
1st
15th
1st
1st
1st
17th
Pernicious Numbers (Long)
17th
14th
8th
137th
Poker
7th
29th
Prime Numbers
20th
26th
12th
25th
1st
18th
1st
23rd
37th
20th
12th
10th
Prime Numbers (Long)
17th
18th
11th
33rd
1st
7th
1st
1st
1st
49th
4th
Proximity Grid
8th
QR Decoder
4th
14th
Quine
1st
10th
6th
24th
42nd
1st
1st
69th
Recamán
3rd
1st
14th
133rd
Repeating Decimals
9th
Reverse Polish Notation
8th
95th
Rijndael S-box
10th
Rock-paper-scissors-Spock-lizard
8th
35th
Roman to Arabic
21st
1st
1st
Rule 110
4th
8th
42nd
18th
Seven Segment
19th
6th
6th
20th
SI Units
7th
Sierpiński Triangle
7th
4th
7th
7th
7th
20th
7th
5th
Smith Numbers
5th
10th
14th
8th
8th
9th
13th
17th
Spelling Numbers
6th
46th
Star Wars Opening Crawl
14th
Sudoku
4th
31st
Sudoku v2
12th
46th
Ten-pin Bowling
10th
Time Distance
8th
51st
Tongue-twisters
20th
13th
16th
128th
United States
3rd
32nd
Vampire Numbers
4th
5th
20th
18th
Van Eck Sequence
28th
16th
19th
13th
181st
Zodiac Signs
8th
34th
γ
4th
8th
λ
7th
30th
13th
12th
11th
28th
22nd
π
20th
45th
56th
τ
19th
42nd
38th
φ
21st
18th
1st
34th
29th
√2
17th
1st
1st
90th
22nd
𝑒
16th
12th
18th
21st
72nd
18th