id:A068286 - OEIS Search Results

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1/7 the number of colorings of an n X n staggered hexagonal array with 7 colors.

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1, 150, 390750, 17684490750, 13905331460469750, 189961376944305892137750 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Terms for rhombic- and staggered- hexagonal arrays are the same for n in 1..4.`
	CROSSREFS	`Cf. A068239-A068305, A000332, A002417, A027441.` `Sequence in context: A135969 A128963 A068274 this_sequence A115483 A139505 A095745` `Adjacent sequences: A068283 A068284 A068285 this_sequence A068287 A068288 A068289`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhh(AT)cadence.com), Feb 24 2002`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.