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A204781 Number of (n+2)X9 0..2 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..2 introduced in row major order 1

%I

%S 244944162648,1352264628934656,6972630432052561776,

%T 36302705908249227882336,189028841218044281822571840,

%U 983786658795358884417033843750,5121078716739687209206582420410120

%N Number of (n+2)X9 0..2 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..2 introduced in row major order

%C Column 7 of A204782

%H R. H. Hardin, <a href="/A204781/b204781.txt">Table of n, a(n) for n = 1..11</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 19 2012

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Last modified October 22 18:45 EDT 2021. Contains 348175 sequences. (Running on oeis4.)