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%I #5 Mar 31 2012 12:37:03
%S 5304,81706,752028,9984856,102186340,1289881302,13850148312,
%T 170465231268,1881896188454,22817667622740,256504693469550,
%U 3080269435649410,35064690706443986,418391719698372934,4805847180224170442
%N Number of (n+1)X7 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero
%C Column 6 of A204840
%H R. H. Hardin, <a href="/A204838/b204838.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..1..1..0..1..0..1....0..1..0..1..1..1..2....0..1..2..1..1..1..1
%e ..0..1..0..1..0..1..1....2..1..2..1..1..1..0....2..0..2..0..2..0..2
%e ..1..0..1..0..1..0..1....0..1..0..1..1..1..2....1..1..2..1..2..1..2
%e ..1..1..1..1..2..1..1....2..2..2..0..2..0..2....1..1..0..1..0..1..0
%e ..1..0..1..0..1..0..1....1..0..1..1..1..1..2....2..0..2..1..2..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 19 2012
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