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%I #7 Mar 01 2023 14:03:11
%S 2268,2996,5632,21984,86152,359424,1435584,5673232,23721984,94748544,
%T 374433312,1565650944,6253403904,24712598592,103332962304,
%U 412724657664,1631031507072,6819975512064,27239827405824,107648079466752
%N Number of (n+1) X 6 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly two equal edges, and new values 0..2 introduced in row major order.
%C Column 5 of A206215.
%H R. H. Hardin, <a href="/A206212/b206212.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 66*a(n-3) for n > 810.
%e Some solutions for n=4
%e ..0..0..1..1..0..2....0..1..2..0..1..1....0..0..1..0..2..1....0..0..1..0..2..0
%e ..1..1..0..1..1..0....1..1..2..2..0..1....0..1..0..0..2..2....0..2..0..0..2..2
%e ..2..1..1..2..1..1....0..0..1..2..2..0....1..0..0..2..1..1....1..0..0..1..0..0
%e ..1..0..1..1..2..2....1..0..0..1..2..2....0..0..2..1..1..0....0..0..1..0..0..1
%e ..1..1..2..1..2..0....2..1..0..0..1..1....2..2..1..1..0..1....2..2..0..0..1..0
%Y Cf. A206215.
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 04 2012