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%I #4 Nov 26 2014 09:57:01
%S 2704,71610,1690656,32944614,595652178,9955305702,159191945604,
%T 2447786874761,36658965039940,537101491175460,7742699987325454,
%U 110146944374439952,1550863271320446778,21652702233916294607
%N Number of (n+1)X(3+1) 0..2 arrays with nondecreasing maximum of every two consecutive values in every row and column
%C Column 3 of A250620
%H R. H. Hardin, <a href="/A250615/b250615.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..0..1..2..1....0..0..2..0....1..2..2..1....1..1..1..0....0..0..1..1
%e ..2..2..2..1....0..2..1..2....1..2..2..0....2..1..2..1....1..2..2..0
%e ..1..0..1..0....2..1..2..0....1..1..2..1....1..1..2..2....1..0..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 26 2014
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