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.

A160239 Number of "ON" cells in a 2-dimensional cellular automaton ("Fredkin's Replicator") evolving according to the rule that a cell is ON in a given generation if and only if there was an odd number of ON cells among the eight nearest neighbors in the preceding generation, starting with one ON cell.

Table of values

n a(n)
0 1
1 8
2 8
3 24
4 8
5 64
6 24
7 112
8 8
9 64
10 64
11 192
12 24
13 192
14 112
15 416
16 8
17 64
18 64
19 192
20 64
21 512
22 192
23 896
24 24
25 192
26 192
27 576
28 112
29 896
30 416
31 1728
32 8
33 64
34 64
35 192
36 64
37 512
38 192
39 896
40 64
41 512
42 512
43 1536
44 192
45 1536
46 896
47 3328
48 24
49 192
50 192
51 576
52 192
53 1536
54 576
55 2688
56 112
57 896
58 896
59 2688
60 416
61 3328
62 1728
63 6784

List of values

[1, 8, 8, 24, 8, 64, 24, 112, 8, 64, 64, 192, 24, 192, 112, 416, 8, 64, 64, 192, 64, 512, 192, 896, 24, 192, 192, 576, 112, 896, 416, 1728, 8, 64, 64, 192, 64, 512, 192, 896, 64, 512, 512, 1536, 192, 1536, 896, 3328, 24, 192, 192, 576, 192, 1536, 576, 2688, 112, 896, 896, 2688, 416, 3328, 1728, 6784]

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

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