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A068295 1/6 the number of colorings of an n X n octagonal array with 6 colors. 0
1, 60, 21060, 44172540, 553785175620, 41503847098683420 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

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

Sequence in context: A009564 A001460 A003794 * A177643 A123482 A092870

Adjacent sequences:  A068292 A068293 A068294 * A068296 A068297 A068298

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 17:27 EST 2012. Contains 205644 sequences.