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%I #5 Mar 31 2012 12:37:23
%S 203,4132120,671329819215,440379403449903222,838156242834826375910795,
%T 3787532222733253394267947322830,
%U 35487456577214016192433880229514302813,625053889686420860521751650397504301747811997
%N Number of nX6 nonnegative integer arrays with new values 0 upwards 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 Column 6 of A208466
%H R. H. Hardin, <a href="/A208465/b208465.txt">Table of n, a(n) for n = 1..11</a>
%e Some solutions for n=4
%e ..0..0..0..0..0..0....0..0..0..0..1..1....0..0..0..0..0..0....0..0..0..0..1..0
%e ..0..1..0..1..0..2....0..1..0..0..0..0....0..1..0..1..0..0....0..1..0..0..0..0
%e ..0..0..0..0..0..0....2..0..1..0..1..0....1..0..0..0..1..0....0..0..1..0..1..0
%e ..2..0..1..0..1..0....1..0..0..2..0..0....0..1..0..0..2..0....0..0..0..0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 27 2012
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