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%I #5 Mar 31 2012 12:37:30
%S 44770,6711168,948609890,135833193008,19391662870652,2771380588485262,
%T 395928291655518846,56572313966664992566,8082834582799800606818,
%U 1154877996377518700415076,165007101830680869540237766
%N Half the number of (n+1)X5 0..3 arrays with every 2X2 subblock having two or four distinct clockwise edge differences
%C Column 4 of A209913
%H R. H. Hardin, <a href="/A209909/b209909.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..1..3..3..0....3..0..0..1..1....0..2..2..1..0....1..0..0..0..0
%e ..3..0..1..0..2....1..3..1..3..0....3..3..0..2..3....3..1..3..1..3
%e ..1..1..2..1..3....0..0..3..1..1....0..1..3..3..2....1..3..1..3..0
%e ..3..0..1..0..2....3..1..0..0..3....3..1..0..1..3....1..0..3..0..1
%e ..1..3..2..1..3....0..3..3..2..2....3..0..1..3..1....0..1..1..0..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 15 2012
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