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A068304 1/15 the number of colorings of an n X n octagonal array with 15 colors. +0
1
1, 2184, 592510464, 19977134899857408 (list; graph; listen)
OFFSET

1,2
CROSSREFS

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

Adjacent sequences: A068301 A068302 A068303 this_sequence A068305 A068306 A068307

Sequence in context: A107657 A002521 A059757 this_sequence A046320 A016759 A086874

KEYWORD

nonn

AUTHOR

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

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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