A299520 - OEIS

%I #4 Feb 11 2018 06:15:27

%S 1,22,132,476,5869,89125,902141,12982595,174024827,2513147146,

%T 35812535764,514825664193,7444094395717,107716750932920,

%U 1560267702776647,22616336874366328,327901784821420818,4755230232057409078

%N Number of nX7 0..1 arrays with every element equal to 0, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299521.

%H R. H. Hardin, <a href="/A299520/b299520.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299521.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 11 2018