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%I #5 Mar 31 2012 12:37:33
%S 48689,15072359,4631193134,1424263182001,437975212393770,
%T 134683271058638241,41416871324907300274,12736232904829456441673,
%U 3916559147436595608586666,1204393458629921029588921777
%N Number of (n+1)X6 0..3 arrays with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order
%C Column 5 of A210404
%H R. H. Hardin, <a href="/A210401/b210401.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..1..0..0..0..0....0..1..0..1..0..0....0..0..0..0..0..0....0..0..0..0..0..0
%e ..0..2..2..1..3..1....0..2..1..2..0..0....1..2..3..2..3..2....1..2..1..2..1..3
%e ..3..0..1..3..0..3....3..0..1..3..2..1....3..2..0..3..1..1....1..3..3..1..3..0
%e ..0..1..2..2..0..1....2..2..2..3..0..1....2..1..1..3..2..3....0..1..0..0..1..0
%e ..1..2..3..0..3..3....2..2..2..1..3..0....2..3..2..1..1..1....0..2..1..3..3..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 21 2012