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A302947 Number of nXn 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 0

%I

%S 0,3,86,6531,2104533,2766909379,13578993819785,252836915021232264,

%T 18036285050227905448214,4921162186957679442128426852

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

%C Diagonal of A302953.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302953.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 16 2018

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Last modified June 5 15:37 EDT 2020. Contains 334852 sequences. (Running on oeis4.)