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%I #4 Mar 06 2018 11:28:08
%S 0,19,68,540,7456,78195,935121,10913850,127028268,1493618674,
%T 17461316528,204700167234,2397343348003,28083486453043,
%U 328982201480033,3853663395457966,45143074414088192,528811530208812741
%N Number of nX6 0..1 arrays with every element equal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 6 of A300465.
%H R. H. Hardin, <a href="/A300463/b300463.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..1..0..0..0. .0..0..1..1..0..0. .0..0..1..1..1..1. .0..0..1..1..0..0
%e ..0..1..1..0..0..1. .0..0..1..1..0..1. .0..1..1..0..1..1. .0..0..1..0..0..1
%e ..0..0..1..1..1..1. .0..0..1..0..1..1. .0..0..0..0..0..1. .0..0..0..0..1..1
%e ..0..1..1..0..1..0. .0..1..1..0..0..0. .0..0..1..0..1..0. .1..1..1..1..0..0
%e ..0..0..0..0..0..0. .1..1..0..0..0..0. .0..1..1..1..0..0. .1..1..1..0..0..0
%Y Cf. A300465.
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 06 2018
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