%I #4 Mar 29 2018 12:48:51
%S 0,89,1411,56710,1608681,58609226,1969215107,67333850084,
%T 2287773842566,77959998302605,2653916633152707,90371628086108933,
%U 3077076307444521060,104774663297551634379,3567555401986729558326,121474804497455764013977
%N Number of 6Xn 0..1 arrays with every element equal to 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
%C Row 6 of A301951.
%H R. H. Hardin, <a href="/A301955/b301955.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
%e ..0..1..0..0..0. .0..0..0..1..1. .0..1..0..0..0. .0..1..0..1..1
%e ..1..1..1..0..1. .1..1..1..1..1. .1..1..1..1..0. .1..0..0..0..1
%e ..1..0..1..1..1. .0..0..0..1..1. .0..0..0..0..0. .1..1..1..1..1
%e ..0..1..0..1..1. .1..1..0..1..0. .1..1..1..1..0. .0..0..0..1..0
%e ..0..0..0..1..1. .1..0..0..0..0. .1..1..1..0..0. .1..1..0..0..0
%Y Cf. A301951.
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 29 2018