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%I #4 Feb 16 2014 06:39:05
%S 6042,64146,645156,7259122,84562206,940160466,10256817488,
%T 114442690994,1289184763590,14363355184818,159182824702650,
%U 1774324207171920,19835441920244388,221078397238990622,2459909992151774668
%N Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
%C Column 4 of A237965
%H R. H. Hardin, <a href="/A237961/b237961.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..2..0..2..1..2....1..2..0..2..1....1..1..2..0..0....1..2..2..1..1
%e ..1..2..0..2..1....2..0..1..1..2....0..1..0..1..1....2..2..0..1..0
%e ..1..2..1..0..1....2..2..2..2..0....1..2..0..1..2....1..1..1..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 16 2014
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