%I #4 Apr 23 2018 10:42:41
%S 0,23,119,168,547,2079,6322,17903,53665,177334,555813,1667489,5141358,
%T 16219859,50536643,155427826,481370601,1501569819,4667505936,
%U 14454412939,44845109069,139426950850,433097541907,1343835090319,4171764326604
%N Number of 4Xn 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C Row 4 of A303410.
%H R. H. Hardin, <a href="/A303411/b303411.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A303411/a303411.txt">Empirical recurrence of order 71</a>
%F Empirical recurrence of order 71 (see link above)
%e Some solutions for n=5
%e ..0..0..1..0..0. .0..0..0..1..1. .0..0..0..1..1. .0..1..0..1..1
%e ..1..0..1..1..1. .0..1..0..1..1. .0..1..0..1..0. .0..0..1..0..0
%e ..1..1..0..0..1. .1..1..0..0..0. .1..1..0..0..0. .0..1..1..1..1
%e ..1..1..0..1..1. .0..0..1..1..0. .1..0..0..1..1. .1..0..1..0..0
%Y Cf. A303410.
%K nonn
%O 1,2
%A _R. H. Hardin_, Apr 23 2018
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