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%I #5 Mar 31 2012 12:36:35
%S 187,804833,3794115705,17895005957823,84402688527136201,
%T 398089706066811447174,1877611081501313948217870,
%U 8855851690895754550489882369,41769091588504560613470987916898
%N Number of nX7 0..4 arrays with values 0..4 introduced in row major order and no element equal to any horizontal or vertical neighbor
%C Column 7 of A198906
%H R. H. Hardin, <a href="/A198905/b198905.txt">Table of n, a(n) for n = 1..27</a>
%e Some solutions with values 0 to 4 for n=4
%e ..0..1..0..1..0..2..3....0..1..0..1..0..2..0....0..1..0..1..0..2..1
%e ..1..0..1..0..1..3..2....1..0..1..0..3..0..2....1..0..1..0..3..4..3
%e ..0..1..0..2..0..2..3....0..1..0..2..4..2..4....0..1..0..2..0..1..0
%e ..1..0..2..0..2..4..1....1..0..2..0..2..1..3....1..0..2..0..2..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 31 2011
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