%I #5 Mar 31 2012 12:36:45
%S 10,211,3699,91223,2111763,45733593,891142897,15644678596,
%T 249289360661,3639136663173,49094967861596,616937242119695,
%U 7271050760251026,80851029109219123,852557302953238048,8562810135696296292
%N Number of nX4 0..3 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor
%C Column 4 of A201625
%H R. H. Hardin, <a href="/A201621/b201621.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..1..3..3....0..2..2..2....0..0..2..2....0..0..3..3....0..2..2..2
%e ..1..2..2..2....0..2..3..3....0..2..2..2....2..2..2..2....0..2..3..3
%e ..2..2..0..0....1..0..0..3....0..2..2..3....2..3..1..1....3..2..0..0
%e ..2..2..0..0....1..1..1..3....0..3..3..3....2..3..3..3....3..2..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 03 2011
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