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%I #5 Mar 31 2012 12:37:01
%S 61336,1131008,19698336,313801352,5406738528,91301191200,
%T 1536831498888,26029238052168,439829118347696,7431287377932800,
%U 125613328165459808,2122853433439980672,35877461084178660960,606366376120718137800
%N Number of (n+2)X7 0..1 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..1 introduced in row major order
%C Column 5 of A204398
%H R. H. Hardin, <a href="/A204395/b204395.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..0..1..0..0..0..1....0..1..0..1..0..0..0....0..1..1..1..0..1..0
%e ..0..1..1..0..1..0..0....1..0..0..0..1..0..0....1..0..1..1..0..1..0
%e ..0..0..1..0..1..1..1....1..1..1..1..1..0..1....1..0..1..0..0..1..0
%e ..1..0..1..0..0..1..0....1..0..0..1..1..1..0....0..0..1..0..1..0..0
%e ..1..0..1..0..0..1..0....0..0..0..1..0..0..0....1..0..1..0..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 15 2012
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