%I #4 Feb 02 2014 07:37:07
%S 5288,79164,1150036,22056220,411646536,8124638140,158569999540,
%T 3140246502408,61933486884504,1227200207914348,24281736510050872,
%U 481242897954184144,9533140821129343856,188962382433686427052
%N Number of (n+1)X(3+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal
%C Column 3 of A237007
%H R. H. Hardin, <a href="/A237002/b237002.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..1..1..1..1....0..3..0..3....0..2..1..2....0..1..1..0....1..1..1..1
%e ..2..0..1..3....1..1..1..1....3..1..3..0....3..2..2..2....1..0..2..1
%e ..0..3..1..0....1..3..1..2....0..2..0..3....0..1..0..1....1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 02 2014