editing
approved
editing
approved
1, 36, 6588, 6169500, 29609340804, 728465439240612, 91873868538291559236, 59398217444060775978706980, 196856852524443536659406407297548
a(8) -a(9) from Alois P. Heinz, May 03 2012
1, 36, 6588, 6169500, 29609340804, 728465439240612, 91873868538291559236, 59398217444060775978706980
a(8) from Alois P. Heinz, May 03 2012
approved
editing
_R. H. Hardin (rhhardin(AT)att.net), _, Feb 24 2002
nonn,new
nonn
Ron R. H. Hardin (rhhardin(AT)att.net), Feb 24 2002
nonn,new
nonn
Ron Hardin (rhhrhhardin(AT)cadenceatt.comnet), Feb 24 2002
1/5 the number of colorings of an n X n staggered hexagonal array with 5 colors.
1, 36, 6588, 6169500, 29609340804, 728465439240612, 91873868538291559236
1,2
Terms for rhombic- and staggered- hexagonal arrays are the same for n in 1..4.
nonn
Ron Hardin (rhh(AT)cadence.com), Feb 24 2002
approved