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A050513 a(n) = (-1)^n * Sum_{i=0..n} binomial(n+1,i+1)*prime(i+1). 2
2, -7, 20, -53, 136, -341, 836, -2005, 4712, -10881, 24770, -55763, 124464, -275933, 608282, -1334119, 2911870, -6325091, 13674120, -29425307, 63042232, -134517425, 285984130, -606056545, 1280778342, -2700105565, 5680099084, -11925792491 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..27.

MATHEMATICA

Table[(-1)^(n-1)*Sum[Binomial[n, k]*Prime[k], {k, 1, n}], {n, 1, 20}] (* Vaclav Kotesovec, Mar 01 2016 *)

CROSSREFS

Cf. A030015.

Sequence in context: A066373 A096005 A050532 * A128183 A027418 A035508

Adjacent sequences:  A050510 A050511 A050512 * A050514 A050515 A050516

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Dec 28 1999

STATUS

approved

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Last modified June 15 15:16 EDT 2021. Contains 345049 sequences. (Running on oeis4.)