%I #9 May 27 2025 16:40:03

%S 64,1709,28530,544280,9637513,175683720,3190446497,57940960729,

%T 1053163229940,19149261238587,348129370407358,6328789167931744,

%U 115060972846874058,2091893536440561148,38031724493094942507,691436837367518098023,12570733825805261233516,228543453012302087159777

%N Number of n X 7 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

%H R. H. Hardin, <a href="/A305592/b305592.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5:

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

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

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

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

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

%Y Column 7 of A305593.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 05 2018