|
%I #4 Aug 21 2018 13:11:52
%S 3,21,47,245,1042,4794,20502,93848,413543,1866198,8419364,37903931,
%T 171452530,772835587,3491017470,15756245294,71124997356,321138172302,
%U 1449613531826,6544951016378,29546522979051,133392926489825
%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 5 of A318214.
%H R. H. Hardin, <a href="/A318211/b318211.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..1..0. .0..0..1..1..0. .0..1..1..1..1. .0..1..0..1..0
%e ..1..1..0..0..1. .1..0..1..1..0. .1..1..0..0..1. .1..1..1..1..0
%e ..1..0..0..0..0. .0..1..0..0..0. .1..1..0..1..0. .1..0..1..1..0
%e ..1..1..1..0..0. .0..1..0..1..1. .0..0..0..0..0. .0..1..1..1..0
%e ..0..0..0..0..1. .0..0..0..1..0. .0..1..0..0..1. .0..0..0..0..1
%Y Cf. A318214.
%K nonn
%O 1,1
%A _R. H. Hardin_, Aug 21 2018
| 