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%I #5 Mar 31 2012 12:36:35
%S 52,272410,5315840795,116492275674072,2572072097029554676,
%T 56817439251356046537693,1255145613308486512244031328,
%U 27727293796669883715931085888092,612520905593913038338760996059873808
%N Number of nX6 0..6 arrays with values 0..6 introduced in row major order and no element equal to any horizontal or vertical neighbor
%C Column 6 of A198723
%H R. H. Hardin, <a href="/A198721/b198721.txt">Table of n, a(n) for n = 1..11</a>
%e Some solutions with all values 0 to 6 for n=3
%e ..0..1..2..3..4..2....0..1..2..1..2..3....0..1..2..3..4..2....0..1..0..2..3..0
%e ..1..0..1..2..3..5....1..0..1..4..3..5....1..0..1..2..1..3....1..0..1..3..4..2
%e ..0..1..0..1..6..0....0..1..0..6..5..4....0..1..0..5..6..4....0..1..3..4..5..6
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 29 2011