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A203458 Number of nX6 0..2 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors 1

%I

%S 1,209,29677,2527020,231588325,22078482448,2078403848722,

%T 195550611728699,18462917498925709,1743348624980118002,

%U 164530017863130381978,15527422729883740377106,1465484485283794984735686

%N Number of nX6 0..2 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors

%C Column 6 of A203460

%H R. H. Hardin, <a href="/A203458/b203458.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..1..2..2..1..1..0....2..2..1..0..0..0....1..2..2..1..2..2....2..2..0..0..0..0

%e ..1..2..2..1..1..0....2..2..1..0..0..0....1..2..2..1..2..2....2..2..1..2..2..0

%e ..1..0..0..1..2..2....2..2..0..2..2..2....0..2..1..2..2..2....1..1..1..2..2..1

%e ..2..2..1..2..2..2....1..0..0..2..0..2....0..2..1..2..1..1....1..0..0..1..0..1

%e ..2..2..2..2..1..1....1..1..1..2..2..2....0..2..2..2..0..0....1..1..1..1..1..1

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 02 2012

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Last modified October 17 21:17 EDT 2021. Contains 348065 sequences. (Running on oeis4.)