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%I #4 Feb 24 2014 06:22:59
%S 12372,227622,4124382,73547936,1325192097,23867403810,431525615512,
%T 7754964008116,140102741116287,2519445217835664,45526526723208179,
%U 818530641216657186,14790136479124024049,265931224012975513088
%N Number of (n+1)X(3+1) 0..3 arrays with the maximum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
%C Column 3 of A238311
%H R. H. Hardin, <a href="/A238308/b238308.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=1
%e ..2..3..0..1....3..2..3..3....3..0..1..1....1..0..2..1....3..2..2..1
%e ..1..0..3..3....3..3..1..0....2..0..2..2....3..1..1..3....3..1..2..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 24 2014