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%I #4 Mar 10 2018 10:29:07
%S 2,15,34,97,300,1036,3313,11075,37067,122922,407858,1357514,4523493,
%T 15101162,50477243,168866252,565232270,1892399523,6336697206,
%U 21221333391,71076453037,238076082776,797517130607,2671722364414,8950813865109
%N Number of nX4 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 4 of A300639.
%H R. H. Hardin, <a href="/A300635/b300635.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..1..0. .0..0..1..1. .0..1..1..1. .0..0..1..1. .0..1..1..0
%e ..0..1..1..0. .1..1..0..0. .0..1..1..0. .1..1..0..0. .0..0..0..1
%e ..1..1..1..1. .1..1..1..0. .1..0..1..0. .0..0..1..0. .1..1..1..1
%e ..0..1..0..0. .1..1..0..1. .1..0..1..0. .1..1..0..1. .0..0..1..1
%e ..0..0..1..1. .1..0..1..1. .1..0..1..0. .0..0..1..1. .0..1..1..1
%Y Cf. A300639.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 10 2018
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