id:A068253 - OEIS Search Results

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1/3 of the number of colorings of an n X n square array with 3 colors.

+0
3

1, 6, 82, 2604, 193662, 33865632, 13956665236, 13574876544396, 31191658416342674, 169426507164530254380 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`For formula see A078099.`
	CROSSREFS	`Cf. A068239-A068305, A000332, A002417, A027441. See A047938 for number of improper colorings.` `Main diagonal of A078099.` `Sequence in context: A135624 A089397 A089701 this_sequence A112462 A067249 A054605` `Adjacent sequences: A068250 A068251 A068252 this_sequence A068254 A068255 A068256`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhh(AT)cadence.com), Feb 24 2002`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Jul 22 2004`

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