%I #8 Jul 13 2014 02:48:59
%S 406468,12149024,405401852,14163256928,488835819834,16925434187136,
%T 590192559141494,20435454685816288,714496961639809210,
%U 24788891407048570312,867098385461953895482,30089142655310004742832
%N Number of (n+1) X (5+1) 0..3 arrays with the upper median plus the lower median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.
%C Column 5 of A237921.
%H R. H. Hardin, <a href="/A237919/b237919.txt">Table of n, a(n) for n = 1..22</a>
%e Some solutions for n=1:
%e ..0..1..1..2..2..3....0..2..3..1..2..1....0..2..1..1..1..2....0..2..1..1..3..0
%e ..2..2..1..3..0..1....2..3..0..3..0..1....3..3..2..2..0..3....1..1..2..1..2..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 15 2014
