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%I #5 Mar 31 2012 12:37:28
%S 365,254496,125526240,57113932788,25586970618660,11437585318270860,
%T 5112092569118325704,2285013663964828552960,1021387683873603848380972,
%U 456557468966590708568722520,204080223921705625484844604564
%N Number of 7Xn 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors
%C Row 7 of A209100
%H R. H. Hardin, <a href="/A209106/b209106.txt">Table of n, a(n) for n = 1..158</a>
%e Some solutions for n=4
%e ..0..1..0..2....0..1..0..2....0..0..0..0....0..0..0..1....0..0..0..1
%e ..1..2..0..1....2..2..0..1....1..1..1..1....1..2..2..1....2..1..2..2
%e ..1..0..1..2....0..1..2..1....2..2..0..1....2..0..1..2....0..2..0..0
%e ..0..1..2..0....2..1..0..1....0..2..1..0....2..1..2..0....2..0..1..1
%e ..0..2..0..1....1..2..2..2....1..2..0..1....1..2..0..1....2..1..2..1
%e ..0..1..2..0....1..0..0..0....2..0..1..0....1..2..0..2....2..1..0..2
%e ..1..2..0..1....0..1..2..1....0..1..2..0....2..0..1..2....1..2..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 05 2012