%I #6 Jun 15 2020 14:20:29
%S 1,5,22,427,21730,3096833,1226106440,1213390065190,3070232362267950
%N Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
%C Diagonal of A299221.
%e Some solutions for n=5
%e ..0..1..1..0..1. .0..1..0..1..1. .0..0..0..1..0. .0..0..0..1..1
%e ..0..0..1..0..0. .1..1..1..1..0. .1..0..0..0..0. .0..1..0..1..1
%e ..1..0..0..0..1. .0..0..1..1..1. .0..0..0..1..0. .1..1..0..1..0
%e ..1..1..1..1..1. .1..0..1..1..1. .0..0..0..1..1. .0..0..1..0..0
%e ..0..1..0..1..0. .1..1..1..1..0. .0..1..0..1..1. .1..0..1..1..0
%Y Cf. A299221.
%K nonn
%O 1,2
%A _R. H. Hardin_, Feb 05 2018