%I #6 Mar 09 2023 15:31:37
%S 21,185,233,687,7425,34801,164295,1053249,5803057,30459340,175958088,
%T 988572609,5409436965,30475463803,171059829077,949886716408,
%U 5320086247758,29806428448927,166317770692219,930326534497792
%N Number of n X 7 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C Column 7 of A303197.
%H R. H. Hardin, <a href="/A303196/b303196.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..1..0..1..1..0..1. .0..1..1..0..1..0..1. .0..1..0..0..1..0..1
%e ..0..1..1..0..1..0..1. .1..0..1..0..1..1..1. .0..1..1..1..1..0..1
%e ..1..1..1..1..1..1..1. .1..0..1..0..1..0..0. .0..1..0..1..0..1..1
%e ..1..1..1..1..1..0..1. .1..0..0..1..1..1..1. .0..1..0..0..1..0..1
%e ..0..1..1..0..0..0..1. .1..1..1..1..1..0..1. .0..1..1..1..1..0..1
%Y Cf. A303197.
%K nonn
%O 1,1
%A _R. H. Hardin_, Apr 19 2018