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A300917 Number of nXn 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0

%I

%S 1,3,20,593,48588,14914968,13715723327,40555879417852,

%T 372826575580930236,10763317686740172159278

%N Number of nXn 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Diagonal of A300923.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300923.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 15 2018

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Last modified October 19 20:55 EDT 2019. Contains 328224 sequences. (Running on oeis4.)