id:A135864 - OEIS Search Results

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G.f. A(x) satisfies: A(x) = 1 + 9x*A(x)^(1/3).

+0
3

1, 9, 27, 0, -81, 243, 0, -2916, 10935, 0, -168399, 682344, 0, -11711385, 49364964, 0, -900438201, 3887490915, 0, -73729998576, 323480165085, 0, -6303914878248, 27978933759300, 0, -556251967191492, 2490404893915293, 0, -50276620111538700, 226626845346291663, 0 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n) = -9^n*binomial(n/3,n)/(2n/3 - 1).`
	PROGRAM	`(PARI) a(n)=9^nbinomial(n/3, n)/(1-2n/3)`
	CROSSREFS	`Cf. A135863, A135866.` `Sequence in context: A084813 A056409 A056399 this_sequence A074954 A103952 A103955` `Adjacent sequences: A135861 A135862 A135863 this_sequence A135865 A135866 A135867`
	KEYWORD	`sign`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Dec 02 2007`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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