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A282311 Number of nX3 0..1 arrays with no 1 equal to more than four of its king-move neighbors. 1

%I #4 Feb 11 2017 11:24:36

%S 8,63,419,2968,21055,148793,1052672,7447859,52689903,372763688,

%T 2637186103,18657216265,131993683472,933812070731,6606414049379,

%U 46738212662072,330657526383363,2339293553069185,16549734672364196

%N Number of nX3 0..1 arrays with no 1 equal to more than four of its king-move neighbors.

%C Column 3 of A282316.

%H R. H. Hardin, <a href="/A282311/b282311.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 5*a(n-1) +11*a(n-2) +31*a(n-3) -24*a(n-4) -65*a(n-5) -108*a(n-6) +21*a(n-7) +88*a(n-8) +86*a(n-9) +12*a(n-10)

%e Some solutions for n=4

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

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

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

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

%Y Cf. A282316.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 11 2017

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Last modified April 16 03:28 EDT 2024. Contains 371696 sequences. (Running on oeis4.)