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%I #5 Aug 11 2014 22:46:08
%S 2404,42264,722548,12435076,215833320,3742165712,64753334132,
%T 1120625605524,19402307063528,335925911180296,5815540423521376,
%U 100678169726567032,1742970553687774724,30174878799319673848
%N Number of (n+1)X(2+1) 0..3 arrays colored with the difference of the upper median and the lower median in each 2X2 subblock
%C Column 2 of A236041
%H R. H. Hardin, <a href="/A236038/b236038.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A236038/a236038.txt">Empirical recurrence of order 87</a>
%F Empirical recurrence of order 87 (see link above)
%e Some solutions for n=2
%e ..0..1..1....3..0..1....3..3..2....0..2..3....3..0..2....2..0..3....0..3..2
%e ..2..3..3....0..2..0....1..3..0....2..0..2....0..3..3....2..2..3....3..1..1
%e ..2..2..0....2..1..1....2..1..1....2..3..1....1..1..0....0..1..2....2..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 18 2014