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A305476 Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero. 0

%I #4 Jun 02 2018 08:50:28

%S 1,5,10,48,277,1558,11438,123104,1894686,36262397,960587975,

%T 37710956242,1964623266399,139733367823273

%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Diagonal of A305482.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305482.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 02 2018

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Last modified August 20 19:38 EDT 2024. Contains 375339 sequences. (Running on oeis4.)