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A302471 Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I

%S 8,1934,21843,584333,12546601,278275383,6145486847,137317050228,

%T 3037409718914,67479138025096,1498702560639572,33260815033321880,

%U 738459050330835570,16395573840831348665,363975603158138097907

%N Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A302472.

%H R. H. Hardin, <a href="/A302471/b302471.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302472.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 08 2018

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Last modified August 18 22:51 EDT 2022. Contains 356215 sequences. (Running on oeis4.)