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%I #4 Jan 10 2014 07:11:30
%S 22500,1826923,149643266,9676094946,623604857055,32662713888028,
%T 1724073736174640,76002795623829546,3387480212316840735,
%U 129022109042050899256,4972470574066747942531,166872014375969665991253
%N Number of (n+1)X(3+1) 0..3 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise
%C Column 3 of A235416
%H R. H. Hardin, <a href="/A235415/b235415.txt">Table of n, a(n) for n = 1..28</a>
%e Some solutions for n=1
%e ..3..0..2..0....1..2..2..1....3..3..1..0....3..2..0..0....1..3..1..2
%e ..3..2..1..2....2..0..1..1....3..3..0..1....3..0..2..2....1..2..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 10 2014