A296650 - OEIS

%I #4 Dec 17 2017 15:48:02

%S 81,1897,33933,849983,20337282,453231742,10730354337,250993766141,

%T 5814109226770,135951473715467,3171429468785555,73885652459293138,

%U 1723840754084789977,40201645117010706612,937384798388530881164

%N Number of nX7 0..1 arrays with each 1 adjacent to 0, 1 or 3 king-move neighboring 1s.

%C Column 7 of A296651.

%H R. H. Hardin, <a href="/A296650/b296650.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A296651.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 17 2017