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 A289644 Number of n X n 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1. 0

%I

%S 0,2,61,8554,2662095,5675111511,35072966294346,1096128160677176696,

%T 121691314711314375091217

%N Number of n X n 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.

%C Diagonal of A289651.

%e Some solutions for n=4

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

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

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

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

%Y Cf. A289651.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 09 2017

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Last modified November 29 14:23 EST 2020. Contains 338769 sequences. (Running on oeis4.)