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A280179 Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. 1
15, 656, 13720, 202693, 2665301, 31821879, 359880117, 3910652938, 41205820599, 424186764568, 4286516071132, 42663698232264, 419306557225259, 4077141776062489, 39281413060768999, 375445083262145664 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A280180.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..0..0..0..1..1..0..0. .0..0..0..0..1..1..1. .0..0..0..0..0..1..1

..0..0..1..1..1..0..1. .0..0..0..0..1..1..1. .0..0..1..1..0..1..1

..0..0..0..0..0..1..1. .1..0..0..0..0..0..1. .1..1..1..0..0..1..1

CROSSREFS

Cf. A280180.

Sequence in context: A351180 A092958 A222268 * A223203 A279465 A349889

Adjacent sequences:  A280176 A280177 A280178 * A280180 A280181 A280182

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 28 2016

STATUS

approved

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Last modified May 21 14:54 EDT 2022. Contains 353921 sequences. (Running on oeis4.)