A145258 - OEIS

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A145258

1/9 of the number of 9-colorings of an n X n array symmetric about main diagonal.

1, 64, 29184, 94818816, 2194974079488, 362034059960871936, 425455980192553057625088, 3562419025470409266468883742208, 212530144659518720790378044762226342912 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	LINKS	`Table of n, a(n) for n=1..9.`
	CROSSREFS	`Sequence in context: A052200 A146517 A009497 * A202911 A013743 A223353` `Adjacent sequences: A145255 A145256 A145257 * A145259 A145260 A145261`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Oct 05 2008`
	STATUS	`approved`

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Last modified June 19 13:50 EDT 2013. Contains 226411 sequences.