A298710 - OEIS

%I #4 Jan 25 2018 08:35:51

%S 1,53,20,87,1354,3950,9586,92375,384519,1468344,9531019,48632741,

%T 222839718,1283757387,6897783261,35029987304,193742947555,

%U 1057480722066,5617597365512,30811375701229,168849070826644,914727570968224

%N Number of nX6 0..1 arrays with every element equal to 1, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 6 of A298712.

%H R. H. Hardin, <a href="/A298710/b298710.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A298712.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 25 2018