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A295212 Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s. 1
1, 69, 1162, 27208, 775547, 18444470, 444447937, 10896495280, 265837272259, 6495847859424, 158822121967384, 3880909066698091, 94831337129003187, 2317336322758510242, 56626572178295328836, 1383738694001835856870 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A295213.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A295213.

Sequence in context: A254683 A095255 A253000 * A264283 A333034 A200826

Adjacent sequences:  A295209 A295210 A295211 * A295213 A295214 A295215

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 17 2017

STATUS

approved

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)