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%I #6 Apr 26 2021 21:39:43
%S 32,1178,8971,103633,1033121,10674882,109443619,1125607630,
%T 11570430384,118973283392,1223232810942,12577320454051,
%U 129319715654055,1329670047056784,13671716973942909,140573321698015550
%N Number of n X 6 0..1 arrays with every element unequal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 6 of A318016.
%H R. H. Hardin, <a href="/A318014/b318014.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..1..1..1. .0..0..1..1..1..1. .0..1..0..0..0..0. .0..0..0..1..0..0
%e ..0..0..0..0..0..0. .0..1..1..1..1..0. .0..1..1..1..1..0. .0..0..1..1..0..0
%e ..0..0..0..0..0..1. .0..1..1..0..0..0. .0..1..1..1..1..1. .0..0..1..1..0..0
%e ..0..1..1..0..0..1. .0..0..0..0..0..0. .0..1..1..1..1..1. .0..1..1..0..0..0
%e ..1..1..1..0..0..1. .0..1..1..0..1..1. .0..0..1..1..1..1. .1..0..0..0..0..1
%Y Cf. A318016.
%K nonn
%O 1,1
%A _R. H. Hardin_, Aug 12 2018
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