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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.

A267538 Binary representation of the middle column of the "Rule 143" elementary cellular automaton starting with a single ON (black) cell.

Table of values

n a(n)
0 1
1 11
2 110
3 1100
4 11001
5 110011
6 1100111
7 11001111
8 110011111
9 1100111111
10 11001111111
11 110011111111
12 1100111111111
13 11001111111111
14 110011111111111
15 1100111111111111
16 11001111111111111
17 110011111111111111
18 1100111111111111111
19 11001111111111111111

List of values

[1, 11, 110, 1100, 11001, 110011, 1100111, 11001111, 110011111, 1100111111, 11001111111, 110011111111, 1100111111111, 11001111111111, 110011111111111, 1100111111111111, 11001111111111111, 110011111111111111, 1100111111111111111, 11001111111111111111]

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

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