12 Days of Christmas
9th
19th
8th
5th
15th
37th
86th
128th
84th
10th
23rd
13th
15th
25th
15th
13th
65th
19th
45th
10th
14th
100th
332nd
26th
15th
33rd
58th
29th
10th
15th
35th
51st
122nd
10th
764th
11th
18th
77th
64th
3rd
20th
43rd
10th
15th
20th
15th
8th
24 Game
💎
39th
2nd
99 Bottles of Beer
11th
8th
8th
5th
11th
29th
93rd
124th
54th
7th
15th
14th
19th
17th
16th
12th
58th
14th
42nd
12th
13th
103rd
425th
25th
9th
18th
59th
21st
13th
13th
36th
60th
133rd
12th
850th
13th
16th
82nd
58th
8th
15th
34th
13th
11th
17th
8th
10th
Abundant Numbers
17th
13th
9th
7th
18th
17th
30th
121st
99th
20th
31st
19th
27th
15th
22nd
23rd
67th
30th
71st
9th
29th
120th
288th
48th
30th
18th
52nd
25th
12th
22nd
36th
59th
82nd
13th
155th
16th
28th
96th
83rd
4th
16th
38th
9th
20th
11th
21st
20th
Abundant Numbers (Long)
10th
8th
4th
5th
14th
10th
45th
50th
64th
8th
22nd
14th
25th
11th
12th
12th
31st
24th
38th
19th
58th
119th
33rd
22nd
14th
31st
20th
12th
12th
25th
35th
29th
10th
369th
16th
18th
45th
37th
6th
6th
22nd
8th
12th
8th
16th
13th
Arabic to Roman
6th
5th
5th
Arithmetic Numbers
2nd
Arrows
4th
Ascending Primes
2nd
2nd
ASCII Table
7th
11th
10th
3rd
13th
27th
40th
48th
41st
11th
8th
9th
9th
8th
10th
31st
18th
17th
8th
11th
39th
89th
15th
13th
12th
24th
15th
9th
9th
15th
21st
35th
6th
251st
8th
14th
42nd
29th
4th
3rd
8th
7th
7th
4th
8th
9th
brainfuck
5th
3rd
13th
39th
135th
2nd
Catalan Numbers
19th
7th
2nd
5th
6th
11th
15th
29th
14th
8th
16th
13th
12th
10th
12th
5th
24th
27th
33rd
7th
31st
30th
79th
34th
12th
13th
10th
9th
5th
6th
19th
6th
30th
11th
1st
5th
19th
49th
10th
6th
5th
5th
12th
12th
4th
4th
10th
Catalan’s Constant
8th
7th
3rd
5th
8th
12th
11th
17th
16th
9th
11th
11th
5th
11th
8th
15th
14th
11th
5th
30th
43rd
45th
5th
15th
15th
5th
5th
12th
10th
7th
23rd
10th
144th
9th
12th
18th
9th
6th
4th
15th
11th
7th
4th
7th
13th
Christmas Trees
10th
9th
9th
3rd
9th
22nd
59th
100th
37th
23rd
13th
17th
7th
12th
11th
34th
18th
37th
9th
14th
56th
251st
23rd
13th
14th
43rd
20th
9th
13th
32nd
53rd
76th
8th
667th
10th
25th
82nd
49th
7th
9th
21st
8th
14th
7th
12th
8th
Collatz
17th
12th
13th
8th
17th
11th
64th
84th
100th
9th
18th
17th
26th
12th
15th
13th
38th
35th
50th
8th
17th
78th
193rd
36th
23rd
15th
43rd
19th
13th
11th
24th
46th
37th
11th
525th
16th
18th
53rd
57th
8th
5th
26th
12th
13th
6th
22nd
CSS Colors
6th
4th
Cubes
5th
8th
3rd
5th
8th
20th
39th
37th
17th
9th
6th
7th
4th
8th
8th
23rd
9th
17th
6th
9th
35th
91st
14th
8th
10th
15th
9th
4th
9th
13th
9th
33rd
5th
279th
6th
13th
33rd
22nd
13th
9th
7th
3rd
8th
6th
5th
5th
Day of Week
5th
DFA Simulator
2nd
Diamonds
8th
8th
11th
5th
10th
33rd
72nd
49th
39th
46th
9th
15th
5th
9th
13th
27th
21st
34th
8th
16th
42nd
134th
25th
12th
12th
33rd
15th
7th
12th
19th
27th
45th
8th
442nd
7th
24th
62nd
29th
8th
9th
14th
7th
13th
8th
5th
9th
Divisors
25th
10th
10th
5th
18th
10th
41st
139th
41st
14th
33rd
21st
27th
18th
26th
21st
74th
29th
110th
14th
52nd
133rd
535th
48th
29th
32nd
98th
31st
14th
23rd
49th
126th
93rd
13th
1st
19th
22nd
153rd
94th
5th
13th
48th
19th
23rd
12th
23rd
18th
Emirp Numbers
15th
9th
10th
9th
10th
25th
54th
39th
28th
26th
18th
9th
14th
8th
11th
15th
30th
15th
55th
10th
31st
35th
193rd
22nd
17th
13th
27th
14th
5th
13th
28th
33rd
43rd
11th
118th
9th
22nd
106th
22nd
1st
7th
10th
9th
13th
5th
11th
12th
Emirp Numbers (Long)
8th
7th
7th
6th
10th
12th
39th
28th
27th
7th
12th
8th
12th
7th
6th
10th
19th
12th
20th
6th
18th
23rd
60th
17th
13th
9th
15th
10th
7th
7th
11th
16th
15th
6th
169th
8th
17th
33rd
17th
6th
5th
8th
6th
7th
3rd
8th
11th
Emojify
6th
6th
Evil Numbers
21st
19th
12th
8th
15th
25th
53rd
100th
37th
27th
37th
14th
23rd
18th
15th
24th
68th
31st
72nd
12th
54th
50th
368th
41st
39th
26th
39th
25th
16th
24th
11th
79th
75th
21st
214th
14th
22nd
159th
79th
1st
8th
39th
15th
23rd
10th
17th
20th
Evil Numbers (Long)
12th
12th
10th
5th
14th
11th
19th
55th
56th
11th
27th
14th
21st
11th
14th
14th
34th
32nd
33rd
7th
33rd
41st
122nd
25th
32nd
18th
27th
20th
14th
16th
22nd
33rd
36th
15th
115th
12th
8th
50th
44th
4th
7th
21st
15th
13th
8th
14th
Factorial Factorisation
2nd
6th
Farey Sequence
4th
Fibonacci
82nd
26th
10th
6th
41st
34th
30th
79th
258th
100th
19th
32nd
41st
62nd
50th
47th
26th
54th
22nd
23rd
59th
171st
58th
171st
28th
48th
31st
54th
176th
93rd
33rd
62nd
169th
76th
26th
18th
32nd
186th
152nd
27th
129th
38th
39th
27th
224th
193rd
4th
49th
88th
17th
58th
31st
40th
52nd
Fizz Buzz
112th
31st
22nd
1st
8th
11th
30th
476th
48th
31st
66th
63rd
61st
50th
85th
34th
74th
242nd
58th
53rd
67th
55th
507th
1st
31st
37th
47th
43rd
99th
41st
15th
8th
1st
338th
42nd
46th
50th
53rd
113th
299th
7th
79th
163rd
36th
35th
35th
47th
44th
Foo Fizz Buzz Bar
11th
9th
20th
15th
17th
99th
99th
74th
11th
18th
19th
19th
10th
13th
13th
42nd
24th
42nd
7th
17th
106th
237th
32nd
20th
15th
32nd
18th
12th
11th
32nd
42nd
73rd
16th
633rd
15th
24th
49th
42nd
6th
15th
19th
12th
15th
9th
15th
Forsyth–Edwards Notation
4th
3rd
2nd
Fractions
10th
4th
235th
Game of Life
3rd
13th
57th
3rd
Gijswijt’s Sequence
4th
6th
Happy Numbers
16th
10th
17th
4th
11th
25th
52nd
47th
32nd
26th
21st
13th
14th
8th
15th
16th
50th
24th
56th
8th
32nd
40th
183rd
22nd
27th
17th
31st
15th
8th
13th
30th
26th
50th
12th
254th
11th
29th
73rd
22nd
1st
7th
15th
8th
16th
4th
13th
15th
Happy Numbers (Long)
8th
9th
14th
4th
13th
16th
57th
33rd
26th
8th
19th
14th
15th
7th
8th
13th
29th
25th
31st
8th
24th
30th
88th
19th
26th
14th
23rd
14th
9th
11th
22nd
16th
23rd
10th
285th
13th
16th
47th
21st
3rd
5th
14th
10th
10th
6th
16th
11th
Hexdump
7th
25th
Intersection
6th
Inventory Sequence
8th
6th
15th
9th
9th
16th
34th
24th
26th
6th
16th
9th
11th
5th
6th
8th
16th
12th
15th
8th
21st
56th
14th
9th
10th
14th
11th
8th
9th
20th
16th
16th
4th
156th
9th
10th
28th
11th
3rd
4th
5th
6th
8th
4th
9th
ISBN
9th
4th
15th
26th
19th
5th
11th
6th
Jacobi Symbol
2nd
4th
26th
Kolakoski Constant
8th
7th
3rd
6th
9th
21st
20th
14th
19th
10th
11th
14th
5th
16th
13th
17th
14th
14th
6th
28th
45th
12th
5th
15th
8th
5th
5th
13th
11th
7th
29th
8th
103rd
7th
13th
27th
8th
7th
5th
16th
8th
7th
4th
7th
10th
Kolakoski Sequence
16th
11th
10th
9th
10th
27th
51st
25th
28th
18th
12th
12th
5th
12th
12th
25th
16th
30th
8th
33rd
100th
18th
22nd
11th
18th
10th
7th
11th
22nd
18th
23rd
7th
248th
9th
12th
45th
21st
8th
8th
10th
7th
10th
8th
13th
12th
Leap Years
23rd
13th
9th
5th
19th
27th
42nd
136th
50th
18th
35th
26th
26th
19th
30th
34th
72nd
27th
83rd
8th
26th
142nd
409th
45th
22nd
29th
82nd
43rd
16th
30th
10th
115th
123rd
18th
253rd
21st
13th
102nd
87th
3rd
27th
47th
20th
27th
14th
24th
27th
Levenshtein Distance
5th
4th
71st
5th
8th
Leyland Numbers
7th
9th
5th
5th
7th
21st
26th
32nd
21st
8th
10th
10th
8th
6th
10th
9th
18th
19th
34th
7th
23rd
24th
99th
19th
9th
10th
21st
9th
8th
7th
15th
17th
28th
8th
293rd
9th
14th
42nd
19th
6th
11th
8th
7th
14th
6th
10th
5th
ln 2
6th
4th
Look and Say
8th
9th
8th
4th
9th
24th
27th
35th
26th
10th
20th
11th
7th
6th
9th
9th
8th
22nd
19th
29th
7th
29th
117th
18th
19th
12th
23rd
13th
8th
12th
33rd
27th
26th
8th
306th
9th
18th
54th
16th
3rd
6th
7th
7th
13th
8th
8th
5th
Lucky Numbers
7th
6th
5th
5th
8th
15th
31st
21st
15th
9th
12th
10th
9th
6th
6th
8th
41st
15th
24th
6th
12th
17th
58th
11th
11th
12th
12th
11th
6th
8th
16th
10th
18th
5th
178th
12th
10th
23rd
12th
2nd
5th
7th
5th
9th
5th
6th
8th
Lucky Tickets
5th
2nd
Mahjong
2nd
Maze
4th
6th
1st
Medal Tally
3rd
4th
Morse Decoder
5th
Morse Encoder
3rd
6th
Musical Chords
4th
19th
25th
11th
10th
Niven Numbers
21st
15th
9th
6th
19th
24th
64th
98th
34th
25th
31st
20th
28th
19th
22nd
23rd
47th
33rd
76th
9th
37th
83rd
302nd
42nd
32nd
16th
55th
29th
15th
23rd
20th
58th
70th
16th
26th
16th
14th
104th
54th
1st
15th
31st
15th
23rd
11th
21st
21st
Niven Numbers (Long)
9th
10th
14th
4th
13th
9th
32nd
52nd
49th
9th
22nd
11th
19th
13th
15th
13th
31st
29th
28th
5th
26th
43rd
104th
25th
25th
13th
35th
21st
12th
16th
21st
31st
32nd
13th
331st
16th
22nd
50th
29th
7th
10th
21st
14th
13th
8th
17th
13th
Number Spiral
5th
6th
6th
6th
9th
24th
39th
22nd
19th
7th
14th
11th
4th
9th
7th
19th
11th
13th
6th
26th
26th
59th
8th
23rd
11th
13th
10th
6th
7th
11th
12th
18th
6th
132nd
9th
11th
26th
11th
3rd
4th
6th
5th
10th
5th
7th
9th
Odious Numbers
20th
17th
11th
5th
15th
25th
40th
77th
34th
25th
34th
19th
21st
9th
22nd
17th
21st
55th
34th
61st
12th
50th
16th
73rd
288th
35th
37th
24th
39th
26th
11th
24th
12th
70th
66th
17th
179th
13th
17th
115th
60th
1st
8th
34th
13th
21st
9th
16th
21st
Odious Numbers (Long)
10th
12th
11th
5th
13th
14th
41st
47th
37th
10th
25th
13th
20th
11th
13th
13th
31st
31st
27th
6th
31st
37th
96th
25th
32nd
19th
30th
20th
12th
16th
21st
31st
33rd
15th
75th
14th
16th
42nd
32nd
6th
7th
21st
14th
13th
7th
14th
16th
Ordinal Numbers
10th
3rd
1st
Pangram Grep
8th
3rd
37th
18th
44th
191st
37th
25th
444th
16th
1st
23rd
30th
Pascal’s Triangle
8th
6th
8th
4th
12th
26th
59th
52nd
28th
9th
14th
11th
12th
6th
14th
12th
36th
18th
55th
9th
50th
40th
195th
28th
23rd
17th
37th
15th
10th
57th
38th
41st
40th
10th
36th
14th
27th
79th
38th
9th
9th
20th
8th
15th
9th
11th
10th
Pernicious Numbers
15th
16th
18th
15th
18th
23rd
48th
53rd
40th
25th
30th
19th
23rd
15th
20th
22nd
44th
29th
46th
8th
45th
47th
166th
31st
26th
22nd
38th
29th
13th
25th
35th
39th
51st
13th
65th
15th
41st
94th
49th
2nd
11th
31st
16th
24th
8th
19th
24th
Pernicious Numbers (Long)
7th
9th
12th
4th
10th
10th
24th
27th
21st
8th
18th
10th
14th
9th
8th
13th
23rd
15th
16th
29th
29th
63rd
19th
17th
14th
17th
17th
8th
14th
12th
16th
19th
9th
78th
10th
17th
34th
19th
6th
6th
16th
8th
10th
5th
8th
12th
Poker
5th
3rd
4th
Prime Numbers
29th
12th
14th
5th
19th
24th
25th
98th
42nd
25th
24th
19th
27th
10th
27th
17th
69th
13th
97th
11th
1st
110th
380th
45th
35th
16th
79th
31st
11th
9th
24th
61st
79th
21st
101st
17th
23rd
51st
71st
1st
5th
41st
11th
25th
11th
21st
25th
Prime Numbers (Long)
17th
9th
17th
5th
16th
12th
42nd
64th
38th
11th
24th
16th
22nd
9th
16th
15th
38th
4th
46th
8th
1st
25th
146th
30th
32nd
11th
38th
22nd
11th
12th
8th
36th
26th
17th
38th
17th
21st
65th
49th
2nd
9th
23rd
9th
15th
9th
21st
16th
Proximity Grid
3rd
QR Decoder
5th
68th
Quine
1st
1st
1st
113th
50th
21st
15th
27th
10th
22nd
247th
77th
74th
1st
16th
1st
21st
1st
29th
51st
3rd
11th
59th
1st
21st
1st
19th
12th
Recamán
13th
8th
8th
7th
8th
13th
50th
36th
33rd
10th
17th
9th
10th
5th
9th
9th
21st
13th
23rd
8th
19th
29th
109th
19th
14th
14th
24th
14th
8th
11th
18th
18th
29th
11th
333rd
11th
13th
41st
23rd
4th
5th
7th
5th
13th
7th
11th
8th
Repeating Decimals
4th
67th
Reverse Polish Notation
6th
3rd
Rijndael S-box
3rd
2nd
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
7th
6th
3rd
Rule 110
5th
6th
4th
4th
9th
17th
30th
31st
17th
16th
11th
7th
4th
10th
18th
10th
26th
7th
16th
25th
87th
17th
16th
11th
22nd
10th
8th
9th
14th
12th
25th
9th
35th
5th
13th
42nd
19th
6th
8th
8th
8th
8th
6th
7th
Seven Segment
14th
4th
SI Units
2nd
4th
Sierpiński Triangle
7th
9th
9th
4th
12th
16th
40th
33rd
16th
18th
11th
12th
9th
14th
8th
28th
11th
31st
7th
20th
32nd
115th
22nd
9th
14th
30th
17th
8th
12th
24th
19th
33rd
8th
267th
9th
12th
41st
26th
12th
10th
14th
8th
14th
7th
11th
7th
Smith Numbers
10th
8th
5th
5th
9th
21st
33rd
24th
19th
8th
11th
8th
10th
4th
6th
8th
16th
10th
19th
7th
22nd
24th
54th
13th
8th
10th
10th
12th
7th
9th
13th
12th
14th
8th
78th
9th
11th
36th
15th
6th
4th
9th
6th
8th
5th
9th
9th
Spelling Numbers
5th
Star Wars Opening Crawl
4th
Sudoku
3rd
57th
Sudoku v2
2nd
49th
Ten-pin Bowling
5th
11th
Time Distance
5th
Tongue-twisters
7th
11th
6th
7th
9th
27th
40th
42nd
31st
15th
17th
11th
10th
10th
13th
10th
25th
14th
17th
9th
11th
37th
155th
17th
8th
15th
27th
15th
8th
11th
23rd
19th
46th
7th
291st
8th
17th
41st
23rd
10th
18th
9th
6th
14th
7th
6th
8th
United States
6th
6th
Vampire Numbers
11th
8th
4th
2nd
9th
21st
31st
30th
18th
14th
13th
8th
7th
5th
7th
8th
23rd
11th
16th
7th
10th
25th
58th
10th
6th
11th
17th
12th
5th
6th
8th
6th
21st
9th
168th
6th
8th
37th
15th
6th
5th
6th
5th
10th
3rd
6th
10th
Van Eck Sequence
8th
9th
9th
9th
10th
20th
46th
34th
28th
9th
12th
10th
14th
3rd
8th
9th
20th
16th
22nd
7th
24th
25th
82nd
16th
17th
11th
19th
13th
8th
11th
16th
20th
8th
10th
13th
36th
20th
7th
6th
10th
7th
11th
7th
12th
Zodiac Signs
5th
γ
3rd
λ
11th
10th
3rd
8th
14th
39th
35th
21st
21st
5th
10th
14th
15th
3rd
19th
14th
26th
14th
14th
8th
33rd
76th
15th
6th
21st
13th
8th
7th
18th
9th
12th
36th
8th
107th
10th
14th
26th
13th
6th
10th
21st
5th
4th
8th
5th
8th
13th
π
13th
11th
6th
9th
7th
50th
50th
40th
24th
12th
16th
14th
7th
21st
18th
38th
22nd
30th
8th
63rd
163rd
74th
7th
28th
15th
9th
6th
13th
40th
13th
56th
11th
375th
11th
18th
71st
13th
5th
11th
9th
8th
5th
8th
6th
7th
12th
τ
10th
9th
4th
8th
5th
36th
26th
20th
21st
11th
15th
14th
7th
18th
13th
33rd
19th
19th
8th
41st
85th
63rd
7th
22nd
11th
7th
6th
14th
32nd
10th
38th
10th
203rd
9th
21st
49th
10th
5th
7th
5th
8th
4th
8th
6th
7th
10th
φ
13th
9th
4th
7th
4th
35th
24th
21st
19th
13th
16th
17th
7th
19th
16th
36th
24th
27th
7th
38th
72nd
59th
7th
31st
15th
7th
6th
14th
31st
12th
33rd
12th
270th
8th
25th
53rd
11th
5th
7th
7th
9th
4th
9th
5th
7th
10th
√2
18th
7th
4th
8th
12th
33rd
27th
29th
20th
13th
17th
17th
7th
22nd
13th
42nd
20th
40th
7th
49th
80th
48th
6th
23rd
11th
7th
6th
14th
30th
8th
39th
12th
393rd
8th
19th
47th
12th
5th
8th
26th
9th
4th
10th
6th
7th
11th
𝑒
12th
11th
6th
10th
5th
46th
41st
31st
27th
10th
21st
17th
8th
19th
16th
33rd
19th
29th
9th
39th
84th
65th
6th
26th
26th
9th
6th
17th
31st
39th
38th
11th
297th
18th
15th
75th
14th
5th
6th
7th
9th
5th
8th
6th
9th
18th