A210050 - OEIS

%I #5 Mar 31 2012 12:37:31

%S 14443,1020363,78792305,6356262535,518401340537,42412428208163,

%T 3466529466974219,282766248564198397,23013137181473996275,

%U 1868986625137379906677,151505136803711170945819

%N Number of (n+1)X7 0..2 arrays containing all values 0..2 with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order

%C Column 6 of A210052

%H R. H. Hardin, <a href="/A210050/b210050.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 16 2012