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Number of 7Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Apr 18 2018 12:42:37

%S 0,1172,102952,5550469,436394066,32409609245,2441756629583,

%T 183384084351689,13794436866124300,1037425601212697006,

%U 78023920445683729803,5868131456816299629031,441338827948853709668453

%N Number of 7Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 7 of A303102.

%H R. H. Hardin, <a href="/A303107/b303107.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

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

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

%Y Cf. A303102.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 18 2018