12 Days of Christmas
33rd
19th
24th
13th
64th
9th
99 Bottles of Beer
47th
31st
23rd
22nd
77th
Abundant Numbers
6th
12th35th15th
43rd26th
8th12th
19th
51st56th
8th
Abundant Numbers (Long)
15th
19th
22nd
11th
27th
Arabic to Roman
21st
17th68th
22nd
11th
69th
Arithmetic Numbers
1st
Arrows
20th
21st
32nd
Ascending Primes
21st
ASCII Table
49th
24th
5th
185th
brainfuck
29th
13th
9th
42nd
Card Number Validation
15th
Catalan Numbers
34th
1st
1st1st
Catalan’s Constant
12th
20th
Christmas Trees
12th
6th
4th
11th19th
149th27th
Collatz
17th3rd17th
25th
3rd1st
30th35th
CSS Colors
5th
4th
10th
16th14th
Cubes
19th
8th
9th
132nd
Day of Week
1st
Diamonds
38th
22nd
13th
49th31st
Divisors
12th
33rd26th27th
36th
12th25th
1st
1st39th
8th
Emirp Numbers
7th
26th
15th
12th
12th12th20th
26th21st
6th
Emirp Numbers (Long)
14th
10th
17th
Emojify
16th
45th
Evil Numbers
21st8th13th
21st
48th
8th14th
1st31st
7th16th
Evil Numbers (Long)
29th
15th
13th
33rd
Factorial Factorisation
10th
Farey Sequence
27th
Fibonacci
30th
8th39th1st
1st1st142nd
30th1st
1st
42nd
1st7th
1st15th
Fizz Buzz
8th
19th145th105th65th
18th101st103rd
143rd1st
47th9th
99th54th1st74th13th
Foo Fizz Buzz Bar
49th41st32nd
40th
31st19th
1st31st
Forsyth–Edwards Notation
23rd
Fractions
30th
32nd
22nd
125th1st
Game of Life
9th
Gijswijt’s Sequence
10th
Happy Numbers
3rd
42nd27th21st
19th
42nd
21st12th
1st42nd
10th
Happy Numbers (Long)
25th15th6th
32nd
6th12th
29th33rd
Hexdump
2nd
59th
Intersection
9th
18th
3rd
56th
Inventory Sequence
30th
23rd
4th
ISBN
10th
14th
5th
35th
Jacobi Symbol
9th
6th
8th8th
27th
Kolakoski Constant
5th
6th
2nd
17th15th
Kolakoski Sequence
6th5th6th
5th11th
119th17th
5th
Leap Years
23rd
7th20th3rd
13th8th
12th1st
17th
44th130th27th
9th17th
Levenshtein Distance
17th
11th
1st
12th
82nd1st
Leyland Numbers
14th
18th
34th
7th
178th36th
ln 2
16th
63rd
Look and Say
27th
15th
65th50th
Lucky Numbers
20th
130th20th
Lucky Tickets
9th
15th
30th13th
Maze
17th
Medal Tally
7th
Morse Decoder
6th
15th
34th
Morse Encoder
9th
5th
12th
6th
33rd
Musical Chords
12th
Niven Numbers
41st34th27th
24th
23rd
28th1st
24th
35th64th28th
18th19th
Niven Numbers (Long)
31st
29th
1st
196th
Number Spiral
19th
11th
13th
55th
Odious Numbers
20th8th10th
18th
45th
8th11th
1st27th
7th16th
Odious Numbers (Long)
18th
18th
11th
1st
Ordinal Numbers
25th
13th
27th
1st
23rd134th
Pangram Grep
22nd
11th
1st
52nd54th
Pascal’s Triangle
28th
16th
42nd
17th
117th
Pernicious Numbers
1st
1st
17th
1st1st
1st19th
Pernicious Numbers (Long)
18th
19th
12th
176th
Poker
8th
33rd
Prime Numbers
21st30th12th
30th1st21st1st
29th
48th23rd
12th11th
Prime Numbers (Long)
19th21st10th
39th1st7th1st
1st
1st57th
4th
Proximity Grid
7th
QR Decoder
6th
17th
Quine
1st
6th
32nd
56th1st
1st85th
Recamán
3rd
1st
17th
167th
Repeating Decimals
15th
Reverse Polish Notation
10th
127th
Rijndael S-box
14th
Rock-paper-scissors-Spock-lizard
13th
43rd
Roman to Arabic
26th
1st9th
Rule 110
5th
9th
54th18th
Scrambled Sort
17th
Seven Segment
23rd
11th
9th
27th
SI Units
9th
Sierpiński Triangle
10th6th8th
7th8th
25th7th
6th
Smith Numbers
4th
12th15th13th
9th
9th16th
25th
Spelling Numbers
6th
59th
Star Wars Opening Crawl
19th
Sudoku
6th
36th
Sudoku (Fill-in)
14th
56th
Ten-pin Bowling
15th
Time Distance
13th
60th
Tongue-twisters
22nd
17th
19th
157th
United States
3rd
41st
Vampire Numbers
4th
8th
22nd20th
Van Eck Sequence
28th
20th
19th
16th
230th
Zodiac Signs
11th
42nd
γ
5th
11th
λ
7th
29th
14th
13th12th
35th24th
π
25th
57th63rd
τ
22nd
55th42nd
φ
23rd
21st1st
41st33rd
√2
18th
8th1st
112th27th
𝑒
22nd
15th
19th
26th
99th23rd