%I #5 Mar 31 2012 12:37:09

%S 256,21140,1278672,111242648,18209383140,5567891627984,

%T 3548796740666104,4531526542739275184,11370221346994594652040,

%U 60827254093069565745485584,666208249155797450019782873520,14561819290550204381850004841878000

%N Number of (n+1)X(n+1) 0..3 arrays with every 2X3 or 3X2 subblock having exactly two clockwise edge increases

%C Diagonal of A206063

%e Some solutions for n=4

%e ..2..2..2..0..1....2..3..3..1..3....1..0..0..0..0....1..3..0..3..3

%e ..3..0..3..0..0....1..1..2..3..3....3..1..2..1..1....3..0..0..2..0

%e ..1..1..2..3..3....1..1..3..3..0....3..0..1..1..0....0..0..1..3..3

%e ..1..1..3..3..0....0..3..3..1..1....3..1..1..2..1....1..2..3..3..2

%e ..3..2..3..0..1....1..3..2..1..1....3..1..2..3..0....1..3..3..0..3

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 03 2012