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%I #8 Apr 27 2012 17:30:44
%S 1,1596,312900732,7535656472652144,22293406028991258906822012,
%T 8101633271611742223009066926458678872,
%U 361667559847367304628616562064628954963501797097616,1983295161343761814393139138003147798350023823439773839309854050176
%N 1/13 the number of colorings of an n X n square array with 13 colors.
%Y Cf. A068239-A068305, A000332, A002417, A027441, A182368, A182406.
%K nonn
%O 1,2
%A _R. H. Hardin_, Feb 24 2002
%E a(5)-a(8) from _Alois P. Heinz_, Apr 27 2012
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