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%I #4 Mar 30 2018 12:56:05
%S 64,8192,772272,74917424,7320574992,714887543376,69786476414080,
%T 6812969999327424,665123348184876224,64933307877775254592,
%U 6339175601773524948352,618868043706883764304384
%N Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
%C Row 7 of A302010.
%H R. H. Hardin, <a href="/A302014/b302014.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A302014/a302014.txt">Empirical recurrence of order 78</a>
%F Empirical recurrence of order 78 (see link above)
%e Some solutions for n=5
%e ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
%e ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
%e ..1..1..1..0..0. .1..1..1..0..0. .1..1..1..0..0. .1..1..1..0..0
%e ..0..0..1..0..0. .0..0..0..1..1. .0..0..0..1..0. .0..0..0..0..0
%e ..0..1..0..1..1. .1..1..0..1..1. .0..1..1..0..0. .1..1..1..1..1
%e ..0..0..1..1..0. .0..1..1..0..1. .1..1..1..0..1. .0..1..1..0..0
%e ..1..0..0..1..0. .1..1..1..1..1. .0..0..0..0..1. .0..0..0..1..1
%Y Cf. A302010.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 30 2018
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