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A068260
1/10 the number of colorings of an n X n square array with 10 colors.
1
1, 657, 28398249, 80756726956857, 15108689909693560486761, 185966989177024885647699790454745, 150593374425541553479383211835632929446205561, 8023000566482383689602595749344061213823653461060599304809
OFFSET
1,2
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 24 2002
EXTENSIONS
a(6)-a(8) from Alois P. Heinz, Apr 27 2012
STATUS
approved