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%I #5 Mar 31 2012 12:37:04
%S 7648,100308,366378,5111024,21682734,271619224,1279810940,14597930612,
%T 74840858802,791226597424,4346485274012,43211363910100,
%U 251242668738048,2376185428641580,14477914331199874,131483891350527520
%N Number of (n+1)X3 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero
%C Column 2 of A205046
%H R. H. Hardin, <a href="/A205040/b205040.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..4..3..6....1..4..0....1..4..1....3..0..3....3..2..1....4..2..1....3..3..4
%e ..4..3..2....1..4..2....4..1..4....3..1..0....6..0..6....2..2..5....4..3..3
%e ..0..6..4....1..4..0....5..3..5....0..1..3....3..2..4....4..2..1....3..3..4
%e ..4..0..4....1..4..2....4..1..4....3..0..3....6..0..6....2..2..5....4..3..3
%e ..1..6..3....1..4..0....1..4..1....0..1..6....4..2..4....4..2..1....3..3..4
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 21 2012