A156187 Numerator of Euler(n, 1/6).

1, -1, -5, 23, 205, -1681, -22265, 257543, 4544185, -67637281, -1491632525, 27138236663, 718181418565, -15442193173681, -476768795646785, 11828536957233383, 417370516232719345, -11735529528739490881, -465849831125196593045, 14639678925928297567703

Offset

0,3

Comments

The (unsigned) odd-indexed terms of the sequence appear to give A002439. - Peter Bala, May 16 2017

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Michael E. Hoffman, Derivative Polynomials, Euler Polynomials, and Associated Integer Sequences, The Electronic Journal of Combinatorics, Volume 6.1 (1999): Research paper R21, 13 p. See Eq. (13).

Mathematica

Numerator[EulerE[Range[0, 20], 1/6]] (* Vincenzo Librandi, May 04 2012 *)

Crossrefs

For denominators see A156189. Cf. A002439.

Sequence in context: A226154 A203223 A173041 * A322238 A295080 A323993

Adjacent sequences: A156184 A156185 A156186 * A156188 A156189 A156190

Keyword

sign,frac

Author

N. J. A. Sloane, Nov 07 2009

Status

approved