cp's OEIS Frontend

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.

A266073 Number of OFF (white) cells in the n-th iteration of the "Rule 3" elementary cellular automaton starting with a single ON (black) cell.

Table of values

n a(n)
0 0
1 2
2 4
3 2
4 8
5 2
6 12
7 2
8 16
9 2
10 20
11 2
12 24
13 2
14 28
15 2
16 32
17 2
18 36
19 2
20 40
21 2
22 44
23 2
24 48
25 2
26 52
27 2
28 56
29 2
30 60
31 2
32 64
33 2
34 68
35 2
36 72
37 2
38 76
39 2
40 80
41 2
42 84
43 2
44 88
45 2
46 92
47 2
48 96
49 2
50 100
51 2
52 104
53 2
54 108
55 2
56 112
57 2
58 116
59 2
60 120
61 2
62 124
63 2
64 128
65 2
66 132
67 2
68 136
69 2
70 140
71 2

List of values

[0, 2, 4, 2, 8, 2, 12, 2, 16, 2, 20, 2, 24, 2, 28, 2, 32, 2, 36, 2, 40, 2, 44, 2, 48, 2, 52, 2, 56, 2, 60, 2, 64, 2, 68, 2, 72, 2, 76, 2, 80, 2, 84, 2, 88, 2, 92, 2, 96, 2, 100, 2, 104, 2, 108, 2, 112, 2, 116, 2, 120, 2, 124, 2, 128, 2, 132, 2, 136, 2, 140, 2]

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

Content is available under The OEIS End-User License Agreement.