A068305 - OEIS

%I #8 May 04 2012 18:32:15

%S 1,2730,1097599230,65013773510046270,567344965666217922692546310,

%T 729405912578031916581095228654013174510,

%U 138156586653036397048665899068285784224754055444205830,3855264256604335001270711977271948484283006596889356139648293174199350

%N 1/16 the number of colorings of an n X n octagonal array with 16 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