%I #5 Mar 31 2012 12:37:22
%S 715,10215440,153402542384,2303673397508915,34594950233928279876,
%T 519522527116810577984260,7801822458198433796561428608,
%U 117162260457319989881048135168019,1759460094015764611132758812387283596
%N Number of nX7 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than two of its immediate leftward or upward or left-upward diagonal neighbors
%C Column 7 of A208201
%H R. H. Hardin, <a href="/A208200/b208200.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..0..0..1..0..1..0....0..1..2..3..0..1..2....0..0..0..0..0..0..0
%e ..2..2..1..0..3..1..0....0..0..1..3..0..2..0....0..1..0..1..2..3..2
%e ..1..0..0..0..1..2..0....3..0..2..0..3..1..1....2..0..2..1..0..1..2
%e ..3..3..0..1..0..1..2....2..0..2..0..1..0..3....1..3..2..1..3..0..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 24 2012