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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.

A267524 Binary representation of the middle column of the "Rule 139" elementary cellular automaton starting with a single ON (black) cell.

Table of values

n a(n)
0 1
1 10
2 100
3 1001
4 10011
5 100111
6 1001111
7 10011111
8 100111111
9 1001111111
10 10011111111
11 100111111111
12 1001111111111
13 10011111111111
14 100111111111111
15 1001111111111111
16 10011111111111111
17 100111111111111111
18 1001111111111111111
19 10011111111111111111

List of values

[1, 10, 100, 1001, 10011, 100111, 1001111, 10011111, 100111111, 1001111111, 10011111111, 100111111111, 1001111111111, 10011111111111, 100111111111111, 1001111111111111, 10011111111111111, 100111111111111111, 1001111111111111111, 10011111111111111111]

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

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