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%I #5 Mar 31 2012 12:36:54
%S 209,2509,53754,1941572,111839021,10711347544,1720766183538,
%T 462798586473972,206584733623719215
%N Number of (n+3)X(n+3) binary arrays with no more than one of any consecutive four bits set in any row or column
%C Diagonal of A203048
%e Some solutions for n=3
%e ..0..0..1..0..0..0....0..0..1..0..0..0....1..0..0..0..0..1....1..0..0..0..1..0
%e ..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..1..0..0
%e ..0..0..0..0..0..0....0..0..0..1..0..0....0..0..0..0..1..0....0..0..0..0..0..0
%e ..0..0..0..0..1..0....1..0..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..1....0..0..1..0..0..0....0..0..0..0..1..0
%e ..0..0..1..0..0..0....0..0..0..0..0..0....1..0..0..0..0..0....1..0..0..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 27 2011
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