%I #4 Jun 09 2019 08:41:43

%S 21,91,396,2644,27902,307759,3984553,50108120,631752599,7873793259,

%T 97914938383,1217849040638,15154502797138,188732168188613,

%U 2350844998230808,29285586927132940,364802626463161313

%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A326165.

%H R. H. Hardin, <a href="/A326164/b326164.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..0..1..0..1..0..1..0. .0..0..1..0..1..0..1. .0..0..1..1..0..1..1

%e ..0..1..1..0..1..0..0. .0..0..1..1..0..1..1. .0..0..0..0..1..1..1

%e ..1..0..0..1..1..0..0. .1..0..1..0..0..1..0. .0..0..1..0..0..1..0

%e ..0..0..1..0..0..0..1. .1..1..0..1..1..0..1. .0..0..1..1..0..0..1

%e ..0..0..0..0..0..0..0. .1..0..1..0..1..0..1. .1..0..1..1..1..0..1

%Y Cf. A326165.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 09 2019