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.

A180770 Half the number of nX10 binary arrays with each element equal to at least one neighbor.

Table of values

n a(n)
1 34
2 40218
3 20624430
4 11094190209
5 6029284136868
6 3267207111743056
7 1771532822371947357
8 960486733026829603882
9 520757452730725828979262
10 282344956970612464702333909
11 153082103894376275149564128624

List of values

[34, 40218, 20624430, 11094190209, 6029284136868, 3267207111743056, 1771532822371947357, 960486733026829603882, 520757452730725828979262, 282344956970612464702333909, 153082103894376275149564128624]

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

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