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%I #6 Mar 26 2018 09:54:57
%S 8,25,119,484,2117,9025,38936,167281,720083,3097600,13329209,57350329,
%T 246768392,1061782225,4568619071,19657722436,84582794333,363940725625,
%U 1565955363224,6737954403049,28991906279867,124745667481600
%N Number of n X 3 binary matrices with no two 1's adjacent diagonally or antidiagonally.
%C Column 3 of A181212.
%H R. H. Hardin, <a href="/A181207/b181207.txt">Table of n, a(n) for n=1..400</a>
%F Empirical: a(n) = 5*a(n-1) - 15*a(n-3) + 9*a(n-4).
%F Empirical g.f.: x*(8 - 15*x - 6*x^2 + 9*x^3) / ((1 - 5*x + 3*x^2)*(1 - 3*x^2)). - _Colin Barker_, Mar 26 2018
%Y Cf. A181212.
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 10 2010
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