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%I #6 Oct 28 2020 19:06:32
%S 0,3,14,42,2715,28477,640900,108290760,7783586346,1272340558178
%N Number of n X n 0..1 arrays with every element unequal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
%C Diagonal of A305015.
%e Some solutions for n=5
%e ..0..1..1..0..1. .0..1..1..1..0. .0..1..0..1..0. .0..0..0..0..0
%e ..1..0..1..1..0. .0..1..1..0..1. .0..0..0..0..1. .1..1..0..1..0
%e ..0..0..0..0..0. .0..0..1..1..1. .0..0..0..0..0. .1..1..1..0..0
%e ..1..0..1..1..0. .0..1..1..1..0. .1..1..0..0..1. .0..1..1..1..0
%e ..1..0..1..1..0. .1..0..1..1..1. .0..0..0..0..0. .1..1..1..0..1
%Y Cf. A305015.
%K nonn
%O 1,2
%A _R. H. Hardin_, May 23 2018
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