A305454 - OEIS

%I #4 Jun 01 2018 11:09:00

%S 0,61,376,5580,79810,1117343,16062787,228184784,3255027240,

%T 46401757420,661366698927,9428675340241,134402077281152,

%U 1915938773275685,27311918408468448,389334703089935684,5550020585352043890

%N Number of nX5 0..1 arrays with every element unequal to 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A305457.

%H R. H. Hardin, <a href="/A305454/b305454.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305457.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 01 2018