Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #9 May 02 2012 12:07:13
%S 1,252,1679832,296251234272,1382247094854612672,
%T 170624894466027144691360512,557224605182442995086270684790287872,
%U 48144796146667109603913695806315581931924703232,110052419905312514544259421134157522506638480153437190868992
%N 1/8 the number of colorings of an n X n rhombic hexagonal array with 8 colors.
%C Terms for rhombic- and staggered- hexagonal arrays are the same for n in 1..4.
%Y Cf. A068239-A068305, A000332, A002417, A027441, A212162, A212163.
%K nonn
%O 1,2
%A _R. H. Hardin_, Feb 24 2002
%E a(6)-a(9) from _Alois P. Heinz_, May 02 2012