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 A317030 Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 0

%I #4 Jul 19 2018 19:28:45

%S 1,4,30,354,11368,559097,64983838,19235095363,14834277620731

%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Diagonal of A317036.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317036.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 19 2018

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Last modified December 6 22:36 EST 2023. Contains 367616 sequences. (Running on oeis4.)