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%I #5 Mar 31 2012 12:37:33
%S 450903,293095459,184424586007,117888703860657,75219268772459800,
%T 48035056424818579234,30671441607393794461769,
%U 19585465904867270616144137,12506332508323045669879588659,7985969726376926849664555077067
%N 1/4 the number of (n+1)X6 0..3 arrays with every 2X2 subblock having two or three distinct clockwise edge differences
%C Column 5 of A210335
%H R. H. Hardin, <a href="/A210332/b210332.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..3..2..1..1..1....0..1..0..1..1..0....0..1..3..2..0..3....1..0..0..0..0..3
%e ..1..2..3..3..1..0....3..2..1..2..0..0....3..2..2..1..0..3....1..2..1..0..1..2
%e ..2..1..3..2..1..1....3..2..2..1..1..2....0..1..2..1..0..3....1..3..0..1..0..0
%e ..0..3..1..1..2..1....3..2..0..1..2..1....2..1..0..0..1..2....1..1..2..1..0..1
%e ..3..0..2..1..3..2....1..1..0..2..1..0....3..0..0..1..0..1....1..2..3..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 20 2012