Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #6 Sep 25 2021 10:51:22
%S 21,237,245,1074,4719,17224,65158,261426,990387,3768844,14720334,
%T 56653017,217036116,839438654,3238254715,12452927964,48026433042,
%U 185228062557,713410490056,2749613319152,10600692230546,40849824445421
%N Number of n X 7 0..1 arrays with every element unequal to 0, 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
%C Column 7 of A316615.
%H R. H. Hardin, <a href="/A316614/b316614.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..0..0..1..0. .0..0..0..0..0..0..1. .0..1..1..1..1..1..1
%e ..0..0..1..0..0..0..0. .0..0..0..0..0..0..0. .1..1..1..1..1..1..1
%e ..0..0..0..0..0..0..0. .0..0..0..0..0..0..0. .1..1..1..1..1..1..1
%e ..0..0..0..0..0..1..0. .0..0..0..0..0..0..1. .0..1..1..1..1..0..1
%e ..0..0..1..0..0..0..0. .0..0..1..0..0..0..0. .0..0..1..1..1..1..1
%Y Cf. A316615.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jul 08 2018