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%I #4 Feb 11 2014 09:42:27
%S 9647,132572,1915153,30618976,482106388,7419017752,114668103482,
%T 1793614472940,27996960383960,434388537507724,6749474606955534,
%U 105134236900373020,1637558709137710098,25456188164250835364
%N Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
%C Column 3 of A237677
%H R. H. Hardin, <a href="/A237674/b237674.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..0..1..0..2....2..2..3..0....1..2..2..1....2..0..2..3....1..1..2..1
%e ..2..0..3..1....3..1..3..1....0..3..1..2....2..0..3..0....0..2..0..0
%e ..1..2..1..0....2..0..3..1....1..3..3..2....0..3..2..0....0..0..1..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 11 2014