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Number of 5Xn 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors.
1

%I #4 Mar 14 2017 16:20:19

%S 32,768,8732,150497,2530461,39372084,640543058,10379232484,

%T 166925170079,2696954750091,43549341162990,702716323367054,

%U 11344436592182841,183127943610966121,2955951560151219703,47715653906479391181

%N Number of 5Xn 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors.

%C Row 5 of A283691.

%H R. H. Hardin, <a href="/A283695/b283695.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A283695/a283695.txt">Empirical recurrence of order 56</a>

%F Empirical recurrence of order 56 (see link above)

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A283691.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 14 2017

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Last modified September 22 05:03 EDT 2024. Contains 376097 sequences. (Running on oeis4.)