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.

A283504 Binary representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 641", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 0
2 101
3 1100
4 11101
5 111100
6 1111101
7 11111100
8 111111101
9 1111111100
10 11111111101
11 111111111100
12 1111111111101
13 11111111111100
14 111111111111101
15 1111111111111100
16 11111111111111101
17 111111111111111100
18 1111111111111111101
19 11111111111111111100

List of values

[1, 0, 101, 1100, 11101, 111100, 1111101, 11111100, 111111101, 1111111100, 11111111101, 111111111100, 1111111111101, 11111111111100, 111111111111101, 1111111111111100, 11111111111111101, 111111111111111100, 1111111111111111101, 11111111111111111100]

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

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