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%I #5 Aug 11 2014 22:46:09
%S 1497,17583,203517,2541745,31912919,411993973,5366177421,70784178483,
%T 939861919575,12559245518677,168505627715029,2268388887274823,
%U 30606617041420087,413697241620856373,5598803384835351689
%N Number of (n+1)X(3+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal
%C Column 3 of A236737
%H R. H. Hardin, <a href="/A236732/b236732.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A236732/a236732.txt">Empirical recurrence of order 49</a>
%F Empirical recurrence of order 49 (see link above)
%e Some solutions for n=2
%e ..1..2..1..1....1..1..0..1....0..1..0..2....2..2..0..2....0..2..2..1
%e ..1..2..0..0....1..1..1..2....0..0..0..0....1..0..1..0....1..1..2..2
%e ..1..2..1..1....2..0..1..1....1..0..1..0....2..2..2..0....1..1..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 30 2014