%I #6 Jun 15 2020 14:47:01

%S 1,1,10,19,172,2597,61273,6245870,1821672943,1399272048339

%N Number of n X n 0..1 arrays with every element equal to 0, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Diagonal of A299581.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299581.

%K nonn

%O 1,3

%A _R. H. Hardin_, Feb 13 2018