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A297600 Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 5 neighboring 1s. 1

%I

%S 1,178,1701,6962,93150,1172288,9403199,85828150,919035936,8853487049,

%T 82411356392,809231737581,7936987592888,76162052363914,

%U 735775369925651,7159378085264000,69324523431873026,670205953180878528

%N Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 5 neighboring 1s.

%C Row 7 of A297595.

%H R. H. Hardin, <a href="/A297600/b297600.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

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

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

%Y Cf. A297595.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 01 2018

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Last modified January 22 23:09 EST 2021. Contains 340383 sequences. (Running on oeis4.)