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%I #4 Apr 09 2015 14:41:54
%S 393,570,1564,2512,6352,12280,28816,60728,137768,311200,695592,
%T 1606920,3675600,8477144,19719880,45890144,107177032,251576104,
%U 590847248,1391314808,3284435240,7758601632,18359082728,43496258888,103115774544
%N Number of (n+2)X(2+2) 0..1 arrays with no 3x3 subblock diagonal sum 3 and no antidiagonal sum 3 and no row sum 0 and no column sum 0
%C Column 2 of A256748
%H R. H. Hardin, <a href="/A256742/b256742.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = a(n-1) +6*a(n-2) +5*a(n-3) -19*a(n-4) -34*a(n-5) +8*a(n-6) +52*a(n-7) +24*a(n-8) for n>13
%e Some solutions for n=4
%e ..0..1..0..0....0..1..1..1....1..1..1..1....0..1..0..0....1..0..1..0
%e ..0..0..1..1....1..0..0..1....0..1..0..0....1..0..1..1....1..0..1..1
%e ..1..1..0..0....0..1..1..1....0..1..0..0....0..1..0..0....0..1..0..1
%e ..0..1..1..1....1..0..0..1....1..0..1..1....0..1..0..0....0..1..0..1
%e ..1..1..0..0....1..0..0..1....1..1..0..0....1..0..1..1....1..1..1..0
%e ..0..1..0..1....0..1..1..0....0..1..0..0....0..1..1..0....1..0..1..0
%Y Cf. A256748
%K nonn
%O 1,1
%A _R. H. Hardin_, Apr 09 2015