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Number of nX7 0..1 arrays with every element unequal to 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Aug 09 2018 09:55:44

%S 0,22,10,1089,3303,27620,163297,1242087,7872632,53760082,353252004,

%T 2390946331,15793996654,106138988508,705385250439,4723352116586,

%U 31474104782001,210349127355642,1403285636312709,9371971431288242

%N Number of nX7 0..1 arrays with every element unequal to 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A317871.

%H R. H. Hardin, <a href="/A317870/b317870.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..0..1..1..0..1. .0..1..0..0..1..0..0

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

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

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

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

%Y Cf. A317871.

%K nonn

%O 1,2

%A _R. H. Hardin_, Aug 09 2018