%I #8 May 04 2012 18:18:38
%S 1,2184,592510464,19977134899857408,83707407272669822670292992,
%T 43590120924896822733942257303419219968,
%U 2821017309275220614373517914989957826683223925291008,22689081840779777447950160850969786755578939429093239677401474639872
%N 1/15 the number of colorings of an n X n octagonal array with 15 colors.
%Y Cf. A068239-A068305, A000332, A002417, A027441, A212208, A212209.
%K nonn
%O 1,2
%A _R. H. Hardin_, Feb 24 2002
%E a(5)-a(8) from _Alois P. Heinz_, May 04 2012