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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.

A265219 Number of OFF (white) cells in the n-th iteration of the "Rule 73" elementary cellular automaton starting with a single ON (black) cell.

Table of values

n a(n)
0 0
1 3
2 2
3 7
4 2
5 9
6 8
7 13
8 8
9 13
10 16
11 13
12 12
13 21
14 18
15 21
16 18
17 25
18 18
19 29
20 18
21 33
22 28
23 27
24 30
25 35
26 28
27 37
28 38
29 39
30 36
31 49
32 28
33 47
34 42
35 45
36 38
37 55
38 40
39 49
40 40
41 59
42 52
43 51
44 50
45 65
46 48
47 59
48 60
49 61
50 60
51 67
52 56
53 63
54 80
55 55
56 74
57 75
58 60
59 79
60 78
61 63
62 86
63 79
64 74
65 87
66 88

List of values

[0, 3, 2, 7, 2, 9, 8, 13, 8, 13, 16, 13, 12, 21, 18, 21, 18, 25, 18, 29, 18, 33, 28, 27, 30, 35, 28, 37, 38, 39, 36, 49, 28, 47, 42, 45, 38, 55, 40, 49, 40, 59, 52, 51, 50, 65, 48, 59, 60, 61, 60, 67, 56, 63, 80, 55, 74, 75, 60, 79, 78, 63, 86, 79, 74, 87, 88]

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

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