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A068255 1/5 the number of colorings of an n X n square array with 5 colors. 0
1, 52, 28564, 165770032, 10164078082036, 6584229526795818280, 45062665956031451017237456 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

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

Sequence in context: A093252 A200806 A098148 * A157280 A182924 A206388

Adjacent sequences:  A068252 A068253 A068254 * A068256 A068257 A068258

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Feb 24 2002

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Last modified February 16 10:50 EST 2012. Contains 205904 sequences.