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%I #4 Apr 02 2018 14:53:55
%S 64,86,111,361,621,1563,2853,7306,12963,33522,61775,157788,293072,
%T 746806,1414502,3560709,6821117,17041351,33109869,81878009,160823108,
%U 394307941,783258522,1903510955,3817195020,9202579162,18623741941,44557228577
%N Number of 7Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C Row 7 of A302163.
%H R. H. Hardin, <a href="/A302169/b302169.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A302169/a302169.txt">Empirical recurrence of order 80</a>
%F Empirical recurrence of order 80 (see link above)
%e Some solutions for n=5
%e ..0..0..1..1..0. .0..1..1..0..1. .0..1..0..0..1. .0..1..1..0..1
%e ..0..1..0..1..0. .1..0..1..0..1. .1..1..0..1..0. .1..0..1..0..1
%e ..0..1..0..1..0. .1..0..1..0..1. .0..1..0..1..0. .1..0..1..0..1
%e ..0..1..0..1..1. .1..0..1..0..1. .0..1..0..1..1. .1..0..1..0..1
%e ..0..1..0..1..0. .1..0..1..0..1. .0..1..0..1..0. .1..0..1..0..1
%e ..1..0..0..1..0. .1..0..1..0..0. .0..1..0..1..0. .1..0..1..0..1
%e ..1..0..1..0..0. .1..0..1..0..1. .0..1..1..0..0. .1..0..0..1..1
%Y Cf. A302163.
%K nonn
%O 1,1
%A _R. H. Hardin_, Apr 02 2018
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