A283384 - OEIS

A283384

Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.

%I #4 Mar 06 2017 17:06:44

%S 0,399,34531,1592250,71707838,3007934404,120672330232,4702791428260,

%T 179057922328623,6695014133297498,246668281038206742,

%U 8977573150142192566,323379332405824735003,11545468737993581686038,409038243289396611366132

%N Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.

%C Column 6 of A283386.

%H R. H. Hardin, <a href="/A283384/b283384.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A283386.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 06 2017