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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.

A281421 Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 366", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 3
2 3
3 15
4 11
5 63
6 43
7 255
8 171
9 1023
10 683
11 4095
12 2731
13 16383
14 15019
15 57343
16 19115
17 131071
18 437931
19 254975
20 764587
21 4055039
22 314027
23 1998847
24 6498987
25 19529727
26 134131371
27 108258303
28 528132779
29 356507647
30 2144062123
31 1535082495
32 8240704171
33 4595515391

List of values

[1, 3, 3, 15, 11, 63, 43, 255, 171, 1023, 683, 4095, 2731, 16383, 15019, 57343, 19115, 131071, 437931, 254975, 764587, 4055039, 314027, 1998847, 6498987, 19529727, 134131371, 108258303, 528132779, 356507647, 2144062123, 1535082495, 8240704171, 4595515391]

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

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