A069865 - OEIS

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A069865

Sum of C(n,k)^6.

1, 2, 66, 1460, 54850, 2031252, 86874564, 3848298792, 180295263810, 8709958973540, 433617084579316, 22071658807720392, 1145600816547477316, 60423221241495866600, 3231675487858598367240, 174928470621208572186960 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	`C. Elsner, On recurrence formulae for sums involving binomial coefficients, Fib. Q., 43 (No. 1, 2005), 31-45.`
	FORMULA	`a(n) ~ 43^(-1/2)pi^(-5/2)n^(-5/2)2^(6*n)`
	CROSSREFS	`Cf. A005261.` `Sequence in context: A159716 A157060 A154637 * A092884 A139822 A119552` `Adjacent sequences: A069862 A069863 A069864 * A069866 A069867 A069868`
	KEYWORD	`nonn`
	AUTHOR	`Joe Keane (jgk(AT)jgk.org), Jun 21 2002`

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Last modified February 15 09:54 EST 2012. Contains 205763 sequences.