A185841 - OEIS

%I #5 Mar 31 2012 12:36:03

%S 12609,2506851,254648349,29306445165,3293066139075,373447226493477,

%T 42234121752791535,4780252449901079883,540916812735057941751,

%U 61212736629353668954095,6926987609291166804461061

%N Number of (n+1)X6 0..2 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace

%C Column 5 of A185845

%H R. H. Hardin, <a href="/A185841/b185841.txt">Table of n, a(n) for n = 1..68</a>

%e Some solutions for 3X6

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 05 2011