%I #4 Mar 06 2018 11:39:36
%S 32,1490,31106,759100,18735889,462538206,11408562672,281433652906,
%T 6942908646999,171280218101813,4225436849045491,104240370076371736,
%U 2571581648449512936,63440223592452588279,1565053148367633815372
%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 6 of A300472.
%H R. H. Hardin, <a href="/A300470/b300470.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..1..1..1. .0..0..0..0..1..1. .0..0..0..1..0..1. .0..0..0..1..0..1
%e ..0..1..0..0..0..1. .0..1..0..1..0..0. .0..1..0..1..1..0. .0..1..0..1..0..0
%e ..0..1..1..1..1..0. .0..0..1..0..1..0. .0..1..1..0..1..0. .0..0..1..0..1..0
%e ..0..0..1..0..1..0. .0..1..1..0..1..0. .0..0..1..1..0..1. .0..1..0..1..0..1
%e ..0..1..0..1..0..0. .0..0..0..0..1..0. .0..0..1..0..0..1. .0..0..0..0..1..1
%Y Cf. A300472.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 06 2018
|