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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A267518 Number of OFF (white) cells in the n-th iteration of the "Rule 137" elementary cellular automaton starting with a single ON (black) cell.

Table of values

n a(n)
0 0
1 3
2 3
3 5
4 3
5 5
6 6
7 8
8 5
9 6
10 8
11 8
12 8
13 11
14 11
15 13
16 9
17 11
18 11
19 13
20 14
21 16
22 14
23 14
24 13
25 13
26 17
27 22
28 20
29 16
30 17
31 24
32 19
33 14
34 19
35 25
36 18
37 20
38 25
39 24
40 19
41 24
42 31
43 27
44 26
45 24
46 22
47 32
48 31
49 28
50 24
51 29
52 34
53 30
54 31
55 37
56 34
57 34
58 36
59 35
60 34
61 35
62 36
63 43
64 40
65 36
66 38
67 37

List of values

[0, 3, 3, 5, 3, 5, 6, 8, 5, 6, 8, 8, 8, 11, 11, 13, 9, 11, 11, 13, 14, 16, 14, 14, 13, 13, 17, 22, 20, 16, 17, 24, 19, 14, 19, 25, 18, 20, 25, 24, 19, 24, 31, 27, 26, 24, 22, 32, 31, 28, 24, 29, 34, 30, 31, 37, 34, 34, 36, 35, 34, 35, 36, 43, 40, 36, 38, 37]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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