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%I
%S 365,797162,1390120992,2498731184736,4475009970818208,
%T 8017919094401985204,14365030966055594634024,
%U 25736775141284073785898360,46110664957128119185431178656,82613053824261956541689461407504
%N Number of 7Xn 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors
%C Row 7 of A208392
%H R. H. Hardin, <a href="/A208398/b208398.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..0..1..0....0..0..0..0....0..1..0..2....0..1..1..2....0..0..0..0
%e ..0..1..2..1....0..1..0..2....1..2..2..1....0..1..2..1....1..1..1..2
%e ..0..1..0..0....2..0..1..2....1..0..1..1....2..2..0..0....0..1..2..0
%e ..2..2..0..0....0..2..1..0....0..0..2..0....0..2..2..0....2..1..1..1
%e ..0..1..0..2....2..1..2..1....0..2..0..0....0..1..0..1....2..2..1..0
%e ..1..1..1..2....2..2..1..2....0..1..2..0....1..2..2..2....0..0..2..1
%e ..0..2..2..0....0..2..2..2....1..2..2..0....1..2..0..2....2..1..2..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 25 2012
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