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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.

A285474 Binary representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 3", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 11
2 100
3 1111
4 10000
5 111111
6 1000000
7 11111111
8 100000000
9 1111111111
10 10000000000
11 111111111111
12 1000000000000
13 11111111111111
14 100000000000000
15 1111111111111111
16 10000000000000000
17 111111111111111111
18 1000000000000000000
19 11111111111111111111

List of values

[1, 11, 100, 1111, 10000, 111111, 1000000, 11111111, 100000000, 1111111111, 10000000000, 111111111111, 1000000000000, 11111111111111, 100000000000000, 1111111111111111, 10000000000000000, 111111111111111111, 1000000000000000000, 11111111111111111111]

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

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