id:A079929 - OEIS Search Results

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a(n)=(3*n+1)!/(n!*3^n).

+0
1

1, 8, 280, 22400, 3203200, 717516800, 231757926400, 101973487616000, 58634755379200000, 42686101916057600000, 38374805622535782400000, 41751788517318931251200000, 54068566129928015970304000000 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`In Maple notation, hypergeometric generating function sum(a(n)x^n/(n!)^2, n=0..infinity) = hypergeom([2/3, 4/3], [1], 9x)`
	CROSSREFS	`Sequence in context: A129424 A159496 A045479 this_sequence A136364 A089670 A060355` `Adjacent sequences: A079926 A079927 A079928 this_sequence A079930 A079931 A079932`
	KEYWORD	`nonn`
	AUTHOR	`Karol A. Penson (penson(AT)lptl.jussieu.fr), Jan 16 2003`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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