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A156330 Numerator of Euler(n, 1/12). 1
1, -5, -11, 415, 1705, -120125, -737891, 73544935, 602197585, -77251102325, -790660144571, 123981052932655, 1522721707926265, -282190333761783725, -4043468004740204051, 864617687280807347575, 14158848206836206915745, -3431276846283480837508325 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

FORMULA

G.f.: conjecture T(0)/(1+5*x), where T(k) = 1 - 36*x^2*(k+1)^2/(36*x^2*(k+1)^2 + (1+5*x)^2/T(k+1) ); (continued fraction). - Sergei N. Gladkovskii, Nov 12 2013

a(n) = (-6)^n*skp(n, 5/6), where skp(n,x) are the Swiss-Knife polynomials A153641. - Peter Luschny, Apr 19 2014

MATHEMATICA

Numerator[EulerE[Range[0, 20], 1/12]] (* Vincenzo Librandi, May 05 2012 *)

CROSSREFS

For denominators see A001021.

Sequence in context: A266517 A228054 A283354 * A056253 A101832 A046957

Adjacent sequences:  A156327 A156328 A156329 * A156331 A156332 A156333

KEYWORD

sign,frac

AUTHOR

N. J. A. Sloane, Nov 07 2009

STATUS

approved

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Last modified May 17 18:55 EDT 2021. Contains 343987 sequences. (Running on oeis4.)