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%I
%S 1,35,20,302,10310,127492,1590691,20375630,280811810,3864301448,
%T 50179179330,655917215158,8775960264661,116907223558842,
%U 1546866861474179,20490542758690403,271954342187521110,3609318415540677192
%N Number of 3Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself.
%C Row 3 of A266055.
%H R. H. Hardin, <a href="/A266057/b266057.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A266057/a266057.txt">Empirical recurrence of order 94</a>
%F Empirical recurrence of order 94 (see link above)
%e Some solutions for n=4
%e ..0..3..0..2....1..0..3..0....1..0..2..0....0..3..1..1....1..0..1..2
%e ..0..4..1..0....2..0..4..1....1..4..2..2....0..4..4..0....1..4..0..2
%e ..0..3..2..0....1..2..0..1....0..3..0..1....1..1..3..0....0..3..1..1
%Y Cf. A266055.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 20 2015
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