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Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s.
1

%I #4 Dec 30 2017 11:08:59

%S 34,1009,14817,303202,6088511,116817805,2300975096,45221328552,

%T 886373249313,17409070701573,341863872105465,6712377416974974,

%U 131817021027782984,2588586265036681044,50833896623765794649

%N Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s.

%C Column 7 of A297457.

%H R. H. Hardin, <a href="/A297456/b297456.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A297457.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 30 2017