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A230067 Number of nX7 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).

%I A230067 #6 Jun 02 2025 08:41:05
%S A230067 0,3969,266805,137945025,43142680647,15615593045649,5392746297039195,
%T A230067 1888668174848027049,658744922326993528365,230036351941714961424609,
%U A230067 80301571203375381579772923,28034704123779041409942781569
%N A230067 Number of nX7 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).
%C A230067 Column 7 of A230068
%H A230067 R. H. Hardin, <a href="/A230067/b230067.txt">Table of n, a(n) for n = 1..210</a>
%e A230067 Some solutions for n=3
%e A230067 ..1..1..0..0..0..1..2....0..2..2..1..2..0..0....0..1..0..1..0..1..2
%e A230067 ..1..1..1..2..2..0..1....0..2..1..0..1..2..2....2..2..1..2..2..0..1
%e A230067 ..1..1..1..0..0..0..2....0..1..2..1..0..0..0....0..0..0..1..2..0..2
%K A230067 nonn
%O A230067 1,2
%A A230067 _R. H. Hardin_, Oct 08 2013