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Number of nX7 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors.
1

%I #4 Mar 01 2017 09:52:39

%S 128,10329,749447,56176300,4191671248,312996735204,23371379782671,

%T 1745014838632459,130293529302052579,9728514566669459164,

%U 726389841649273665849,54236674289471904467283,4049639399544625776766470

%N Number of nX7 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors.

%C Column 7 of A283130.

%H R. H. Hardin, <a href="/A283129/b283129.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%Y Cf. A283130.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 01 2017