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.

A282265 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 449", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 0
2 111
3 0
4 11111
5 0
6 1111111
7 0
8 111111111
9 0
10 11111111111
11 0
12 1111111111111
13 0
14 111111110011111
15 0
16 11111111000000111
17 11110000
18 1111111100110011011
19 11110000
20 111111110000000000011
21 111111111000
22 11111111111100000001111
23 111111110000

List of values

[1, 0, 111, 0, 11111, 0, 1111111, 0, 111111111, 0, 11111111111, 0, 1111111111111, 0, 111111110011111, 0, 11111111000000111, 11110000, 1111111100110011011, 11110000, 111111110000000000011, 111111111000, 11111111111100000001111, 111111110000]

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

Content is available under The OEIS End-User License Agreement.