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Number of (n+1)X(3+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal
1

%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