A301495 - OEIS

%I #4 Mar 22 2018 11:56:17

%S 8,6,45,329,2803,21787,164346,1261122,9663349,74049013,567238607,

%T 4346212139,33299808638,255138546287,1954832187142,14977691730085,

%U 114757139031139,879254888227678,6736741952342134,51616087950953069

%N Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A301498.

%H R. H. Hardin, <a href="/A301495/b301495.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A301498.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 22 2018