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A068257 1/7 the number of colorings of an n X n square array with 7 colors. +0
1
1, 186, 923526, 122408393436, 433110977725751106, 40908457493732914322944536 (list; graph; listen)
OFFSET

1,2
CROSSREFS

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

Sequence in context: A147817 A161619 A146502 this_sequence A086000 A155544 A081703

Adjacent sequences: A068254 A068255 A068256 this_sequence A068258 A068259 A068260

KEYWORD

nonn

AUTHOR

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

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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