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Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.
0

%I #4 Jun 26 2018 17:38:53

%S 1,8,78,1253,36585,1962143,189577494,33224254530,10584753639371

%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Diagonal of A316209.

%e Some solutions for n=5

%e ..0..1..0..0..0. .0..1..0..0..0. .0..1..1..1..1. .0..0..1..0..1

%e ..1..1..1..0..1. .0..0..0..0..1. .1..1..1..0..0. .1..0..0..0..0

%e ..1..0..1..0..0. .0..0..0..0..0. .1..1..0..1..0. .0..0..1..1..1

%e ..1..1..1..1..0. .0..0..1..1..0. .1..0..0..1..1. .0..0..1..1..1

%e ..1..1..1..0..0. .0..0..1..1..0. .0..0..0..0..1. .1..0..0..0..0

%Y Cf. A316209.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 26 2018