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A204780 Number of (n+2)X8 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 11475976536,25096321973400,51989763458957400,108409087458981913446,

%T 226195161314062528733400,471676730359800501277345350,

%U 983786658795358884417033843750,2051831834602650677018156435696664

%N Number of (n+2)X8 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 6 of A204782

%H R. H. Hardin, <a href="/A204780/b204780.txt">Table of n, a(n) for n = 1..9</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 19 2012

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Last modified October 17 07:39 EDT 2021. Contains 348048 sequences. (Running on oeis4.)