A009584 Expansion of e.g.f. sinh(log(1+x)/exp(x)).

0, 1, -3, 9, -42, 305, -2665, 25067, -251972, 2745465, -32688943, 424508469, -5968344734, 90114264825, -1451722832677, 24834986644327, -449552904472328, 8585202845115217, -172515580225202331, 3638810086585297153, -80383785130400768466, 1855915975702935666209

Offset

0,3

Links

G. C. Greubel, Table of n, a(n) for n = 0..447

Mathematica

CoefficientList[Series[Sinh[Log[1 + x] / Exp[x]], {x, 0, 25}], x] Range[0, 25]! (* Vincenzo Librandi, Mar 01 2015 *)

Prog

(PARI) x='x+O('x^30); concat([0], Vec(serlaplace(sinh(log(1+x)/exp(x))))) \\ G. C. Greubel, Jan 22 2018

Crossrefs

Sequence in context: A357703 A105804 A009402 * A013562 A081681 A281940

Adjacent sequences: A009581 A009582 A009583 * A009585 A009586 A009587

Keyword

sign,easy

Author

R. H. Hardin

Extensions

Extended with signs by Olivier Gérard, Mar 15 1997

a(20)-a(21) from Vincenzo Librandi, Mar 01 2015

Status

approved