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A316539 Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 4, 7 or 8 king-move adjacent elements, with upper left element zero. 0

%I #4 Jul 06 2018 12:22:56

%S 1,4,26,136,4219,114514,5074646,681913008,140688693646,48442426003864,

%T 36951311160860211

%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Diagonal of A316545.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316545.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 06 2018

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Last modified May 8 12:24 EDT 2024. Contains 372333 sequences. (Running on oeis4.)