A303240 - OEIS

%I #4 Apr 20 2018 10:54:07

%S 1,65,56,149,1373,7823,41878,277018,1721671,10607292,67278868,

%T 424616777,2676699369,16945268476,107280325551,679285054896,

%U 4304451618590,27282048865071,172940738855024,1096476824922147,6952546132868710

%N Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A303242.

%H R. H. Hardin, <a href="/A303240/b303240.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A303242.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 20 2018