id:A111968 - OEIS Search Results

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A111968

Sum(C(n,k)^2*C(n+k,k)^3,k=0..n), where C := binomial.

+0
2

1, 9, 325, 17577, 1152501, 84505509, 6664647781, 553268669865, 47710914870133, 4236909872278509, 385139801423145825, 35681384898462925125, 3358273513450241419125, 320308335005997679093125, 30900030366269721747776325, 3010365811746267487293617577 (list; graph; listen)

	OFFSET	`0,2`
	REFERENCES	`C. Elsner, On recurrence formulae for sums involving binomial coefficients, Fib. Q., 43 (No. 1, 2005), 31-45.`
	CROSSREFS	`Sequence in context: A164080 A124070 A041619 this_sequence A012105 A100569 A152553` `Adjacent sequences: A111965 A111966 A111967 this_sequence A111969 A111970 A111971`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 28 2005`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

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