%I A068292
%S A068292 1,4352,4294971392,961201829493850112
%N A068292 1/18 times the number of colorings of an n X n staggered hexagonal array 
               with 18 colors.
%C A068292 Terms for rhombic- and staggered- hexagonal arrays are the same for n 
               in 1..4.
%Y A068292 Cf. A068239-A068305, A000332, A002417, A027441.
%Y A068292 Sequence in context: A107542 A145916 A048900 this_sequence A154084 A031654 
               A164517
%Y A068292 Adjacent sequences: A068289 A068290 A068291 this_sequence A068293 A068294 
               A068295
%K A068292 nonn
%O A068292 1,2
%A A068292 Ron Hardin (rhhardin(AT)att.net), Feb 24 2002