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%I #4 Jan 29 2014 07:03:42
%S 2680,57496,1235744,26588346,572295072,12319404000,265129548124,
%T 5706240369632,122817349711332,2643443473118034,56894619790736934,
%U 1224540570485407616,26355880439261441384,567259962727163694680
%N Number of (n+1)X(2+1) 0..3 arrays colored with the maximum plus the lower median minus the upper median of every 2X2 subblock
%C Column 2 of A236596
%H R. H. Hardin, <a href="/A236594/b236594.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..2..1..3....1..3..0....3..1..3....0..0..0....3..1..2....2..0..1....1..1..2
%e ..3..3..3....0..3..0....0..1..2....0..3..1....2..2..2....3..0..3....0..3..0
%e ..3..2..0....0..3..3....3..3..2....2..3..0....2..1..1....1..0..3....1..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 29 2014