A068260 1/10 the number of colorings of an n X n square array with 10 colors.

1, 657, 28398249, 80756726956857, 15108689909693560486761, 185966989177024885647699790454745, 150593374425541553479383211835632929446205561, 8023000566482383689602595749344061213823653461060599304809

Offset: 1

Author

R. H. Hardin, Feb 24 2002

Keywords

• nonn

Crossrefs

Cf. A068239-A068305, A000332, A002417, A027441, A182368, A182406.

Extensions

a(6)-a(8) from Alois P. Heinz, Apr 27 2012