id:A068245 - OEIS Search Results

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1/6 the number of colorings of a 4 X 4 rhombic- or staggered- hexagonal array with n colors.

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1, 7616, 5141250, 552093440, 20631905875, 395001645696, 4771909547076, 41190314035200, 275192443300005, 1502690499112000, 6971521964029766, 28275884687022336, 102456840191225975 (list; graph; listen)

	OFFSET	`3,2`
	COMMENT	`Numbers for rhombic- and staggered- hexagonal arrays differ above 4 X 4.`
	CROSSREFS	`Cf. A068239-A068305, A000332, A002417, A027441.` `Sequence in context: A064872 A028539 A031854 this_sequence A038011 A008774 A076339` `Adjacent sequences: A068242 A068243 A068244 this_sequence A068246 A068247 A068248`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhh(AT)cadence.com), Feb 24 2002`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research