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Number of 6Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors.
1

%I #4 Mar 17 2017 12:05:37

%S 64,4096,137459,5676420,252014450,10634931992,449942735521,

%T 19209358763197,817866278279137,34791382042043436,1481097249523129267,

%U 63049410171178969526,2683638174949408013195,114231024572454097056495

%N Number of 6Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors.

%C Row 6 of A283857.

%H R. H. Hardin, <a href="/A283862/b283862.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

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

%Y Cf. A283857.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 17 2017