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%I #6 Jun 15 2020 15:01:58
%S 1,4,10,247,3127,223094,56762816,20496493815,32439092859262
%N Number of n X n 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
%C Diagonal of A299886.
%e Some solutions for n=5
%e ..0..0..0..1..0. .0..1..1..0..0. .0..1..0..0..1. .0..1..1..0..1
%e ..0..0..0..1..0. .0..1..1..0..0. .1..0..0..1..0. .0..1..1..0..1
%e ..0..0..1..1..1. .0..0..1..1..1. .1..1..1..1..1. .0..0..0..0..0
%e ..0..0..0..1..0. .0..0..0..1..1. .0..1..0..0..1. .0..1..1..0..1
%e ..1..1..0..0..1. .1..1..0..0..0. .1..0..0..0..1. .0..1..1..1..0
%Y Cf. A299886.
%K nonn
%O 1,2
%A _R. H. Hardin_, Feb 21 2018