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A157781 Numerator of Bernoulli(n, -1/2). 4
1, -1, 11, -3, 127, -5, 221, -7, 367, -9, -1895, -11, 1447237, -13, -57253, -15, 118526399, -17, -5749677193, -19, 91546283957, -21, -1792042789427, -23, 1982765468376757, -25, -286994504449237, -27, 3187598676787485443, -29, -4625594554880206360895, -31 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..250

MATHEMATICA

Numerator[BernoulliB[Range[0, 35], -(1/2)]] (* Harvey P. Dale, Aug 14 2011 *)

CROSSREFS

For denominators see A157782.

Sequence in context: A147555 A157883 A038317 * A069869 A079841 A110782

Adjacent sequences:  A157778 A157779 A157780 * A157782 A157783 A157784

KEYWORD

sign,frac

AUTHOR

N. J. A. Sloane, Nov 08 2009

STATUS

approved

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Last modified January 22 18:12 EST 2022. Contains 350484 sequences. (Running on oeis4.)