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A305446 Number of nXn 0..1 arrays with every element unequal to 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 0

%I

%S 0,3,7,26,1275,5443,222961,10709608,362139243,59746224393

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

%C Diagonal of A305452.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305452.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 01 2018

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Last modified May 18 01:37 EDT 2021. Contains 343992 sequences. (Running on oeis4.)