%I #5 Jul 22 2015 07:41:00
%S 34,85,747,6044,65907,1271212,28517537,866931786,41412466296,
%T 2594607954501,217632708449176,26820265742576644,4556787104721551797,
%U 1048460617788126795330,341811609666627431538479
%N Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001011
%C Diagonal of A260284
%H R. H. Hardin, <a href="/A260276/b260276.txt">Table of n, a(n) for n = 1..18</a>
%e Some solutions for n=4
%e ..0..1..0..0..0..1....1..0..0..0..0..0....0..0..0..0..1..0....1..0..0..0..0..1
%e ..0..0..0..0..0..0....0..0..0..0..0..1....0..0..0..0..0..0....1..0..0..0..0..0
%e ..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..1..0..0..0..0
%e ..0..0..0..0..0..1....0..1..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
%e ..1..0..0..0..0..0....0..0..0..0..0..0....0..1..0..0..0..0....0..0..0..0..0..0
%e ..1..0..1..0..0..0....0..0..0..0..0..1....0..0..0..0..0..0....0..1..0..0..0..1
%Y Cf. A260284
%K nonn
%O 1,1
%A _R. H. Hardin_, Jul 22 2015