%I #4 Aug 06 2015 11:11:20
%S 48,133,372,1513,4592,18706,45504,195280,441072,2093846,4057280,
%T 20962048,38827984,225849174,367470344,2376475916,3621888816,
%U 26598528246,37810953848,300880005340,400697050360
%N Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00001001 or 00100101
%C Diagonal of A260980
%e Some solutions for n=4
%e ..0..0..0..1..0..0....0..1..0..0..0..0....1..0..0..0..0..0....1..0..0..0..1..0
%e ..0..0..1..0..0..1....0..0..0..0..0..0....0..1..0..0..0..1....0..0..0..0..0..0
%e ..0..0..0..0..1..0....1..0..0..0..1..0....0..0..0..1..0..0....0..1..0..0..0..0
%e ..0..0..0..0..0..0....0..0..1..0..0..1....0..0..1..0..0..0....1..0..0..1..0..0
%e ..0..1..0..0..0..0....1..0..0..1..0..0....0..0..0..0..1..0....0..0..1..0..0..0
%e ..1..0..0..1..0..0....0..1..0..0..0..1....0..0..0..1..0..0....1..0..0..0..1..0
%Y Cf. A260980
%K nonn
%O 1,1
%A _R. H. Hardin_, Aug 06 2015