%I #4 Jun 23 2015 13:40:01
%S 10,94,1460,43870,2293928,224879224,39630793526,12907069546270,
%T 7658473109336548,8358931948086081568,16708747158923511120478,
%U 61372969404995540219424992,413745383754977580838956886918
%N Number of (n+1)X(n+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0001 0101 or 0111
%C Diagonal of A259297
%e Some solutions for n=4
%e ..1..0..1..1..0....0..1..1..0..1....1..0..1..0..0....1..1..0..0..0
%e ..1..1..1..0..1....0..0..1..1..1....0..1..0..1..0....1..0..1..0..1
%e ..0..1..0..1..0....0..1..0..1..0....1..0..0..0..1....1..1..0..1..1
%e ..0..0..1..0..1....0..0..1..1..1....0..1..0..1..0....0..1..1..0..1
%e ..0..1..1..1..0....0..1..0..1..0....0..0..1..0..1....1..0..1..1..0
%Y Cf. A259297
%K nonn
%O 1,1
%A _R. H. Hardin_, Jun 23 2015