A318078 - OEIS

%I #4 Aug 15 2018 13:25:38

%S 5,7,11,22,34,64,132,280,556,1083,2208,4480,9083,18324,37073,74864,

%T 151386,307006,622583,1259310,2546594,5156916,10449815,21161643,

%U 42837534,86725499,175609679,355607121,720103580,1458127803,2952342256,5977830149

%N Number of nX4 0..1 arrays with every element unequal to 0, 1, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 4 of A318082.

%H R. H. Hardin, <a href="/A318078/b318078.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A318082.

%K nonn

%O 1,1

%A _R. H. Hardin_, Aug 15 2018