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%I #6 Aug 11 2014 22:46:08
%S 549,8160,110923,1378463,16385455,187651928,2100282123,23113626964,
%T 251566008413,2717152701688,29200663712707,312765530573453,
%U 3342753914724018,35676421518532748,380426763089559131
%N Number of (n+1)X(2+1) 0..2 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise
%C Column 2 of A235833
%H R. H. Hardin, <a href="/A235829/b235829.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A235829/a235829.txt">Empirical recurrence of order 84</a>
%F Empirical recurrence of order 84 (see link above)
%e Some solutions for n=3
%e ..1..0..2....2..1..2....1..2..2....1..1..1....2..0..2....2..0..2....1..1..2
%e ..2..1..2....1..0..2....0..2..0....2..1..0....0..1..0....1..1..2....0..0..1
%e ..1..1..0....0..2..2....1..0..2....1..1..1....1..1..2....0..2..0....2..1..1
%e ..1..2..1....0..1..2....0..2..0....1..1..2....0..0..0....0..0..0....0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 16 2014