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%I #8 Apr 27 2012 17:30:07
%S 1,1221,151807051,1921891513498671,2477572888040351900883711,
%T 325225549604893753518411953062063971,
%U 4347138911747232969546330930965884363451764385131,5916747359191672857470732990313720758880725307188900212460107911
%N 1/12 the number of colorings of an n X n square array with 12 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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