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A284164 Number of nX7 0..1 arrays with the number of 1s horizontally or vertically adjacent to some 0 equal to the number of 0s adjacent to some 1, with top left element zero. 1
33, 1689, 154108, 16699997, 1852406216, 213897742464, 25064817057781, 2981736353245523, 357844048109256955, 43278292532056389680, 5263990195553603263431, 643350359729498071977340 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A284165.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..19

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A284165.

Sequence in context: A093756 A284333 A284198 * A284221 A264170 A180920

Adjacent sequences:  A284161 A284162 A284163 * A284165 A284166 A284167

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 21 2017

STATUS

approved

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Last modified December 15 17:41 EST 2019. Contains 330000 sequences. (Running on oeis4.)