id:A068283 - OEIS Search Results

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1/4 the number of colorings of an n X n staggered hexagonal array with 4 colors.

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1, 12, 264, 11424, 1009608, 185900256, 71883991272, 58646051219616 (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: A113672 A035265 A068271 this_sequence A003390 A107485 A117415` `Adjacent sequences: A068280 A068281 A068282 this_sequence A068284 A068285 A068286`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Feb 24 2002`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.