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%I #6 Jun 26 2022 04:31:32
%S 1,4,25,1719,467377,504420842,2110655397816,33990477458950173,
%T 2097232699194056398870
%N Number of n X n 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
%C Diagonal of A316932.
%e Some solutions for n=5
%e ..0..0..0..1..0. .0..0..0..0..1. .0..0..0..0..1. .0..1..0..1..0
%e ..1..1..1..1..0. .0..0..0..0..1. .1..1..1..0..1. .0..1..0..0..1
%e ..1..1..0..0..1. .1..1..1..1..1. .0..0..1..1..0. .1..0..1..1..0
%e ..1..1..0..1..0. .1..1..0..1..0. .0..0..1..1..0. .0..0..1..0..1
%e ..1..1..0..1..0. .0..0..1..1..0. .0..0..1..0..1. .1..0..1..0..1
%Y Cf. A316932.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jul 16 2018
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