A299604 - OEIS

%I #4 Feb 14 2018 07:07:29

%S 3,166,424,1446,5125,18273,62547,215175,740442,2539018,8753052,

%T 30227367,104305934,360259911,1244822173,4301556147,14870776980,

%U 51423668704,177844888394,615173366886,2128240710669,7363527937824,25479651392988

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A299607.

%H R. H. Hardin, <a href="/A299604/b299604.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A299607.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 14 2018