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Number of 7 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1's.
1

%I #6 Apr 26 2021 21:18:25

%S 1,5854,346032,11089103,864944851,65775301075,3863740405975,

%T 241491673018271,16106282322466255,1037330977711576009,

%U 66060513585267380291,4262867141607164322540,275167885341459174925030

%N Number of 7 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1's.

%C Row 7 of A297654.

%H R. H. Hardin, <a href="/A297660/b297660.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..0..0. .1..1. .0..0. .1..1. .1..1. .1..1. .0..1. .1..0. .1..0. .0..0

%e ..1..0. .1..1. .1..1. .0..0. .1..0. .0..1. .1..0. .0..1. .1..1. .1..1

%e ..0..1. .1..1. .1..0. .0..1. .0..1. .1..1. .1..0. .1..1. .1..1. .1..1

%e ..1..0. .0..1. .1..1. .1..0. .1..1. .1..1. .0..1. .1..0. .1..0. .1..0

%e ..1..1. .1..0. .1..0. .1..1. .1..1. .1..1. .0..1. .1..1. .0..1. .0..0

%e ..1..0. .0..1. .0..1. .1..0. .1..0. .1..0. .1..1. .0..1. .1..1. .1..1

%e ..1..1. .1..0. .0..0. .0..1. .0..1. .0..0. .0..0. .1..0. .1..1. .0..0

%Y Cf. A297654.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 02 2018