A300370 - OEIS

%I #4 Mar 04 2018 09:08:50

%S 0,2,8,22,92,366,1592,6925,36101,161645,762469,3571297,16723114,

%T 78166439,365870424,1715599255,8028145462,37613414368,176081584796,

%U 824491774631,3861712572473,18083391708768,84680125527458,396550577930555

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

%C Column 6 of A300372.

%H R. H. Hardin, <a href="/A300370/b300370.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300372.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 04 2018