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%I #6 May 23 2020 04:37:32
%S 1,1,11,7,214,10681,610525,240137045,176490627544,423872214348626
%N Number of n X n 0..1 arrays with every element equal to 0, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
%C Diagonal of A298444.
%e Some solutions for n=5
%e ..0..1..1..0..0. .0..1..1..1..0. .0..1..1..1..0. .0..1..1..0..0
%e ..1..1..1..0..0. .1..1..1..1..1. .1..1..0..1..1. .1..1..1..0..0
%e ..0..1..0..0..1. .1..0..1..0..1. .1..1..1..1..1. .1..1..0..0..0
%e ..1..1..1..0..0. .1..1..1..1..1. .1..1..0..1..1. .0..0..1..1..1
%e ..1..1..1..0..0. .0..1..0..1..0. .0..1..1..1..0. .0..0..1..1..1
%Y Cf. A298444.
%K nonn
%O 1,3
%A _R. H. Hardin_, Jan 19 2018