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A283856 Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors. 1

%I

%S 128,13225,901397,72394838,5724272337,449942735521,35481195059121,

%T 2796411775700471,220385420596755894,17369615762718616468,

%U 1368959249299809499467,107892485834872661402986

%N Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors.

%C Column 7 of A283857.

%H R. H. Hardin, <a href="/A283856/b283856.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%Y Cf. A283857.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 17 2017

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Last modified May 28 09:09 EDT 2022. Contains 354112 sequences. (Running on oeis4.)