12 Days of Christmas
7th
13th
69th
90th
36th
11th
23rd
13th
9th
7th
15th
27th
9th
51st
229th
19th
27th
29th
17th
7th
28th
29th
267th
7th
27th
7th
59th
22nd
9th
8th
9th
11th
6th
5th24 Game
5th
7th
6th
4th
12th
4th
2nd
2nd
4th
20th
9th
4th
3rd
2nd
2nd
34th
2nd
7th
6th
2nd
3rd
2nd
99 Bottles of Beer
5th
6th
16th
68th
94th
38th
25th
14th
11th
13th
24th
70th
323rd
18th
25th
13th
7th
242nd
8th
6th
71st
24th
24th
5th
6th
5thAbundant Numbers
10th
19th
19th
14th
11th
13th
142nd
78th
53rd
12th
20th
24th
28th
15th
20th
16th
14th
16th
18th
17th
71st
14th
68th
237th
30th
15th
19th
14th
12th
16th
35th
37th
13th
162nd
11th
25th
7th
93rd
6th
27th
13th
9th
16th
9thAbundant Numbers (Long)
9th
17th
11th
12th
10th
7th
78th
43rd
42nd
13th
5th
27th
20th
14th
18th
9th
9th
15th
15th
40th
106th
21st
11th
17th
13th
7th
24th
27th
112th
12th
16th
6th
44th
1st
19th
9th
6th
11th
8thArabic to Roman
4th
6th
20th
20th
12th
60th
118th
11th
13th
4th
Arithmetic Numbers
10th
7th
9th
5th
48th
30th
25th
4th
29th
12th
9th
12th
5th
8th
12th
7th
17th
54th
13th
3rd
14th
9th
9th
12th
13th
121st
9th
8th
6th
27th
3rd
10th
7th
4th
4th
8thArrows
5th
22nd
12th
8th
12th
110th
12th
5th
Ascending Primes
5th
4th
7th
8th
31st
13th
18th
8th
7th
22nd
8th
8th
9th
2nd
4th
12th
4th
12th
38th
11th
5th
7th
7th
3rd
8th
9th
64th
5th
10th
25th
7th
7th
5th
5th
5thASCII Table
6th
12th
12th
13th
9th
17th
9th
25th
11th
9th
6th
9th
15th
19th
17th
8th
36th
94th
18th
7th
18th
13th
9th
4th
17th
23rd
161st
5th
12th
6th
48th
34th
9th
10th
5th
5th
7th
8thbrainfuck
4th
23rd
14th
159th
20th
5th
Catalan Numbers
5th
7th
28th
19th
21st
30th
10th
6th
5th
18th
7th
142nd
37th
9th
4th
5th
4th
Catalan’s Constant
7th
7th
2nd
5th
9th
10th
15th
12th
4th
7th
16th
5th
6th
5th
6th
6th
21st
42nd
7th
7th
4th
5th
3rd
8th
7th
68th
4th
10th
3rd
8th
21st
4th
8th
4th
6th
4th
6th
11thChristmas Trees
8th
21st
79th
74th
32nd
26th
21st
11th
13th
12th
24th
169th
18th
36th
15th
9th
34th
38th
218th
7th
30th
6th
73rd
28th
20th
8th
10th
6thCollatz
25th
19th
15th
14th
14th
130th
74th
77th
9th
6th
35th
16th
15th
18th
9th
10th
27th
16th
53rd
189th
26th
9th
24th
12th
6th
23rd
41st
411th
15th
16th
7th
50th
19th
20th
6th
4th
18th
8thCSS Colors
5th
20th
3rd
7th
11th
24th
70th
8th
6th
4th
Cubes
5th
18th
19th
9th
13th
13th
5th
2nd
145th
4th
17th
4th
Day of Week
7th
32nd
16th
16th
5th
179th
30th
6th
3rd
DFA Simulator
5th
21st
6th
6th
71st
13th
6th
2nd
Diamonds
9th
7th
22nd
57th
40th
28th
27th
27th
12th
18th
30th
107th
20th
26th
11th
8th
225th
3rd
6th
53rd
21st
12th
7th
4th
6thDivisors
23rd
61st
15th
13th
25th
164th
101st
62nd
12th
7th
40th
30th
20th
21st
17th
18th
43rd
12th
90th
387th
34th
11th
80th
11th
19th
56th
91st
424th
13th
63rd
8th
139th
1st
35th
16th
9th
7th
8thEmirp Numbers
4th
9th
13th
13th
8th
16th
68th
34th
24th
12th
26th
18th
24th
11th
12th
9th
16th
18th
13th
12th
7th
27th
192nd
26th
23rd
25th
11th
5th
12th
34th
56th
76th
7th
65th
7th
113th
13th
13th
13th
10th
8thEmirp Numbers (Long)
7th
5th
7th
6th
7th
33rd
19th
20th
7th
4th
22nd
10th
7th
8th
4th
7th
12th
5th
12th
56th
16th
4th
10th
7th
4th
10th
14th
82nd
5th
18th
5th
33rd
4th
7th
5th
3rd
4thEmojify
3rd
16th
11th
5th
10th
11th
16th
6th
14th
120th
9th
26th
15th
6th
4th
Evil Numbers
17th
18th
21st
18th
13th
24th
168th
87th
43rd
10th
28th
27th
36th
20th
17th
11th
19th
17th
20th
25th
80th
12th
36th
342nd
27th
14th
22nd
19th
11th
12th
45th
101st
16th
98th
10th
55th
10th
154th
31st
20th
21st
14th
10th
16th
10thEvil Numbers (Long)
9th
19th
13th
12th
12th
7th
76th
49th
41st
10th
6th
25th
26th
14th
17th
10th
11th
18th
31st
10th
21st
114th
20th
12th
19th
14th
6th
21st
32nd
29th
8th
18th
6th
49th
13th
14th
13th
10th
6th
10th
10thFactorial Factorisation
4th
4th
2nd
4th
6th
20th
9th
12th
3rd
13th
7th
5th
7th
2nd
8th
27th
7th
7th
6th
💎
2nd
6th
34th
6th
3rd
20th
5th
6th
4th
3rd
3rdFarey Sequence
10th
5th
8th
13th
35th
18th
22nd
10th
3rd
25th
9th
11th
12th
5th
4th
11th
6th
12th
43rd
13th
4th
12th
9th
7th
9th
12th
73rd
6th
9th
20th
14th
10th
7th
2nd
6th
5thFibonacci
67th
47th
110th
39th
29th
21st
337th
178th
122nd
24th
31st
42nd
49th
35th
38th
40th
44th
103rd
30th
165th
582nd
59th
33rd
1st
50th
37th
75th
128th
641st
25th
118th
20th
175th
107th
57th
31st
22nd
29th
32ndFizz Buzz
110th
44th
143rd
30th
28th
88th
422nd
382nd
190th
30th
19th
41st
46th
47th
48th
39th
50th
30th
108th
22nd
369th
1,283rd
57th
64th
182nd
54th
27th
29th
180th
193rd
1,235th
31st
113th
12th
274th
73rd
115th
28th
25th
26th
9thFoo Fizz Buzz Bar
21st
27th
16th
15th
16th
82nd
90th
47th
11th
7th
34th
17th
17th
16th
9th
10th
9th
24th
11th
80th
217th
26th
9th
23rd
14th
10th
8th
32nd
37th
427th
13th
25th
10th
47th
12th
14th
11th
7th
10th
7thForsyth–Edwards Notation
7th
19th
8th
8th
11th
78th
6th
4th
5th
Fractions
8th
26th
12th
19th
19th
13th
6th
128th
7th
15th
8th
5th
9th
Game of Life
4th
20th
8th
7th
12th
13th
79th
4th
7th
6th
4th
3rd
Gijswijt’s Sequence
5th
8th
13th
19th
11th
11th
72nd
5th
7th
8th
7th
Happy Numbers
3rd
17th
15th
13th
11th
18th
77th
46th
26th
11th
26th
9th
24th
10th
9th
15th
14th
13th
10th
34th
182nd
18th
20th
30th
18th
8th
10th
41st
41st
12th
91st
7th
8th
85th
29th
15th
10th
5th
19th
11thHappy Numbers (Long)
4th
14th
10th
11th
9th
49th
28th
20th
8th
24th
16th
11th
10th
21st
19th
77th
14th
9th
19th
11th
7th
21st
14th
129th
11th
44th
18th
12th
6th
13th
8thHexdump
7th
23rd
5th
95th
2nd
Intersection
6th
28th
13th
242nd
7th
20th
7th
Inventory Sequence
11th
7th
12th
30th
16th
22nd
4th
21st
14th
7th
11th
11th
46th
13th
5th
10th
7th
5th
19th
13th
100th
7th
9th
25th
10th
5th
5th
4thISBN
11th
14th
9th
44th
41st
27th
8th
9th
23rd
11th
12th
23rd
80th
16th
11th
21st
9th
8th
100th
8th
9th
7th
9th
6thJacobi Symbol
6th
19th
22nd
11th
91st
8th
4th
Kolakoski Constant
8th
7th
2nd
5th
8th
13th
15th
4th
10th
20th
10th
6th
5th
10th
6th
7th
25th
7th
8th
4th
5th
4th
9th
8th
87th
4th
10th
4th
29th
7th
22nd
4th
8th
6th
6th
4th
6th
10thKolakoski Sequence
13th
19th
39th
20th
24th
4th
24th
15th
10th
13th
23rd
71st
17th
5th
12th
9th
7th
138th
5th
36th
16th
9th
12th
10thLeap Years
20th
20th
44th
12th
13th
15th
151st
55th
43rd
12th
13th
31st
32nd
20th
18th
13th
15th
10th
14th
21st
11th
32nd
266th
26th
22nd
23rd
16th
11th
14th
38th
56th
111th
300th
9th
51st
7th
88th
27th
25th
20th
15th
9th
13th
9thLevenshtein Distance
9th
5th
32nd
13th
11th
20th
116th
12th
8th
13th
7th
Leyland Numbers
8th
8th
28th
7th
17th
15th
157th
5th
41st
14th
4th
7th
ln 2
8th
3rd
5th
8th
15th
15th
5th
6th
25th
6th
6th
6th
5th
24th
28th
5th
8th
4th
4th
3rd
21st
6th
97th
3rd
10th
4th
6th
19th
4th
6th
3rd
6th
4th
6th
9thLook and Say
6th
6th
9th
22nd
14th
17th
15th
108th
12th
7th
7th
Lucky Numbers
6th
7th
7th
23rd
24th
10th
8th
112th
11th
5th
4th
Lucky Tickets
4th
18th
10th
10th
68th
2nd
3rd
Mahjong
14th
26th
Maze
5th
19th
7th
4th
65th
7th
3rd
Medal Tally
5th
23rd
7th
66th
5th
3rd
Morse Decoder
4th
20th
9th
141st
3rd
Morse Encoder
3rd
16th
10th
97th
4th
Musical Chords
15th
17th
9th
5th
6th
65th
N Queens
46th
5th
3rd
Niven Numbers
17th
20th
41st
19th
17th
21st
127th
75th
52nd
16th
25th
34th
31st
19th
23rd
19th
21st
16th
18th
36th
18th
64th
286th
26th
24th
42nd
23rd
14th
19th
40th
59th
314th
14th
48th
8th
103rd
45th
24th
20th
19th
11th
19th
18thNiven Numbers (Long)
16th
13th
11th
14th
8th
54th
41st
35th
13th
6th
30th
22nd
11th
14th
12th
10th
16th
13th
31st
98th
19th
9th
23rd
15th
12th
20th
28th
152nd
14th
21st
7th
51st
16th
14th
13th
10th
6th
16th
9thNumber Spiral
4th
10th
14th
10th
10th
6th
45th
23rd
19th
6th
11th
20th
7th
15th
9th
6th
5th
7th
7th
7th
12th
12th
12th
26th
9th
25th
61st
11th
24th
5th
8th
9th
5th
8th
11th
14th
6th
97th
5th
11th
5th
28th
18th
16th
8th
11th
10th
5th
7th
7thOdious Numbers
6th
19th
20th
18th
13th
24th
133rd
72nd
40th
10th
26th
32nd
33rd
16th
17th
10th
19th
17th
16th
23rd
69th
12th
38th
274th
28th
14th
30th
19th
11th
16th
40th
81st
17th
114th
9th
51st
9th
112th
29th
19th
21st
14th
9th
15th
11thOdious Numbers (Long)
21st
13th
12th
12th
8th
65th
42nd
34th
10th
6th
30th
24th
13th
17th
9th
11th
16th
27th
10th
20th
90th
22nd
12th
20th
14th
10th
20th
30th
76th
9th
18th
6th
41st
11th
13th
12th
10th
5th
10th
9thOrdinal Numbers
9th
27th
14th
12th
9th
28th
8th
113th
17th
10th
7th
8th
Pangram Grep
6th
9th
24th
24th
19th
26th
19th
29th
167th
9th
28th
8th
13th
68th
10th
49th
85th
25th
18th
19th
9th
8thPascal’s Triangle
11th
15th
90th
50th
38th
29th
13th
10th
23rd
34th
185th
19th
33rd
13th
44th
40th
37th
265th
13th
58th
78th
34th
19th
10th
10th
Pernicious Numbers
5th
19th
21st
18th
15th
22nd
82nd
43rd
29th
11th
26th
29th
26th
17th
19th
15th
16th
18th
15th
26th
46th
17th
27th
128th
23rd
12th
31st
24th
12th
16th
35th
37th
20th
103rd
14th
53rd
7th
68th
23rd
22nd
22nd
19th
8th
18th
13thPernicious Numbers (Long)
9th
10th
9th
9th
9th
31st
21st
23rd
9th
6th
26th
17th
10th
9th
6th
9th
12th
10th
21st
54th
15th
8th
13th
11th
8th
12th
16th
81st
6th
19th
6th
34th
16th
11th
7th
6th
2nd
6th
9thPoker
14th
8th
75th
Prime Numbers
10th
20th
35th
20th
14th
20th
187th
77th
62nd
16th
26th
33rd
28th
19th
21st
11th
25th
21st
21st
16th
12th
14th
61st
349th
37th
30th
59th
24th
10th
17th
66th
80th
290th
14th
86th
11th
162nd
14th
36th
18th
11th
9th
15thPrime Numbers (Long)
20th
10th
15th
14th
10th
93rd
50th
54th
13th
7th
33rd
23rd
15th
18th
12th
11th
18th
11th
37th
130th
27th
6th
27th
15th
9th
16th
29th
220th
12th
28th
6th
64th
1st
19th
11th
7th
1st
13thProximity Grid
2nd
16th
5th
9th
4th
50th
5th
2nd
QR Decoder
3rd
16th
5th
57th
3rd
Quine
1st
17th
24th
17th
96th
88th
119th
52nd
108th
8th
7th
Recamán
9th
8th
13th
48th
34th
28th
4th
26th
15th
7th
13th
21st
100th
17th
7th
18th
9th
8th
17th
17th
220th
10th
12th
38th
22nd
8th
9th
6thRepeating Decimals
2nd
16th
10th
67th
Reverse Polish Notation
4th
22nd
10th
43rd
15th
153rd
20th
6th
Rijndael S-box
6th
6th
6th
4th
37th
13th
14th
5th
10th
17th
10th
5th
2nd
3rd
7th
7th
5th
3rd
12th
28th
6th
2nd
8th
5th
5th
5th
6th
5th
69th
2nd
4th
5th
17th
9th
17th
3rd
5th
4th
3rd
4th
9thRock-paper-scissors-Spock-lizard
5th
16th
13th
10th
12th
124th
9th
5th
Roman to Arabic
8th
27th
14th
220th
9th
Rule 110
4th
24th
15th
7th
16th
16th
150th
3rd
41st
15th
5th
4th
Seven Segment
3rd
49th
30th
19th
18th
13th
114th
15th
4th
SI Units
13th
3rd
47th
Sierpiński Triangle
8th
14th
30th
14th
20th
18th
20th
7th
208th
8th
40th
19th
13th
10th
Smith Numbers
5th
7th
8th
27th
21st
16th
3rd
21st
9th
6th
5th
8th
14th
45th
8th
4th
5th
7th
3rd
12th
10th
98th
5th
9th
35th
5th
7th
4th
7th
Spelling Numbers
3rd
7th
14th
6th
68th
67th
11th
3rd
Star Wars Opening Crawl
18th
4th
78th
Sudoku
15th
88th
Sudoku v2
16th
80th
Ten-pin Bowling
3rd
19th
8th
80th
Time Distance
4th
21st
7th
9th
8th
5th
3rd
80th
7th
4th
Tongue-twisters
10th
5th
14th
10th
7th
17th
29th
34th
16th
5th
14th
23rd
12th
6th
6th
8th
5th
11th
3rd
10th
12th
14th
30th
11th
5th
17th
106th
15th
8th
8th
15th
8th
5th
8th
13th
14th
49th
7th
116th
5th
9th
6th
31st
19th
16th
17th
8th
6th
5th
7th
7th
6th
5thUnited States
4th
21st
10th
10th
102nd
10th
12th
3rd
Vampire Numbers
1st
5th
8th
16th
12th
13th
10th
71st
35th
15th
5th
5th
Van Eck Sequence
8th
7th
13th
43rd
28th
24th
4th
15th
10th
11th
13th
16th
72nd
14th
7th
12th
9th
7th
18th
15th
68th
8th
12th
32nd
14th
6th
8th
6thZodiac Signs
3rd
18th
9th
80th
4th
γ
4th
6th
3rd
5th
8th
24th
12th
11th
4th
6th
16th
9th
4th
7th
4th
4th
6th
6th
18th
39th
6th
7th
4th
6th
2nd
3rd
6th
6th
54th
2nd
6th
3rd
14th
6th
18th
3rd
4th
5th
4th
4th
4th
9thλ
11th
10th
5th
5th
14th
30th
20th
15th
5th
12th
17th
10th
13th
4th
6th
6th
6th
10th
9th
42nd
7th
26th
9th
12th
7th
6th
5th
7th
11th
8th
79th
5th
11th
3rd
28th
12th
26th
6th
5th
4th
6th
5th
6th
12thπ
13th
7th
3rd
14th
34th
37th
22nd
6th
14th
28th
12th
16th
7th
9th
13th
20th
6th
47th
45th
15th
12th
7th
6th
5th
35th
11th
224th
4th
27th
5th
72nd
13th
26th
9th
8th
5th
6th
6th
6th
10thτ
10th
5th
5th
13th
20th
16th
5th
12th
25th
11th
7th
7th
10th
17th
6th
36th
50th
13th
10th
6th
6th
5th
29th
8th
165th
4th
16th
5th
50th
10th
23rd
5th
8th
4th
6th
6th
6th
9thφ
12th
4th
5th
18th
20th
15th
8th
13th
28th
13th
10th
9th
13th
18th
6th
34th
46th
17th
14th
6th
6th
5th
28th
10th
163rd
4th
22nd
6th
65th
10th
23rd
7th
9th
4th
7th
5th
6th
10th√2
17th
5th
5th
15th
27th
17th
8th
12th
31st
13th
9th
11th
10th
21st
6th
44th
46th
12th
10th
6th
6th
5th
28th
7th
189th
4th
17th
5th
48th
12th
25th
7th
9th
4th
8th
6th
6th
11th𝑒
11th
5th
5th
15th
30th
25th
7th
13th
27th
10th
7th
13th
8th
6th
32nd
45th
11th
7th
6th
5th
28th
12th
119th
4th
27th
5th
59th
12th
26th
7th
9th
5th
6th
6th
8th
14th