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A278202 Number of nXn 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) (1,0) or (1,1), with upper left element zero. 0

%I

%S 0,3,97,8242,3295771,5306819216,33056811286568,812312404546266967,

%T 78877646007318566942149,30229204386668969418436705255,

%U 45720403850059908972915757270717926

%N Number of nXn 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) (1,0) or (1,1), with upper left element zero.

%C Diagonal of A278208.

%e Some solutions for n=4

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

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

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

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

%Y Cf. A278208.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 15 2016

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Last modified July 22 06:30 EDT 2019. Contains 325213 sequences. (Running on oeis4.)