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

1,2
CROSSREFS

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

Adjacent sequences: A068252 A068253 A068254 this_sequence A068256 A068257 A068258

Sequence in context: A029809 A093252 A098148 this_sequence A070908 A038778 A116107

KEYWORD

nonn

AUTHOR

Ron Hardin (rhh(AT)cadence.com), Feb 24 2002

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Last modified October 5 16:50 EDT 2008. Contains 144613 sequences.

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