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A009601 Expansion of e.g.f.: sinh(tan(log(1+x))). 1
0, 1, -1, 5, -24, 166, -1350, 13026, -143808, 1790560, -24782400, 377280056, -6262125936, 112504698840, -2174463129384, 44977635083096, -991157036904960, 23178047520065536, -573180268144301568, 14943307041391438080 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,4
LINKS
MATHEMATICA
With[{nn=20}, CoefficientList[Series[Sinh[Tan[Log[1+x]]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jun 10 2017 *)
PROG
(PARI) x='x+O('x^30); concat([0], Vec(serlaplace(sinh(tanh(log(1+x)))))) \\ G. C. Greubel, Jan 30 2018
CROSSREFS
Sequence in context: A340358 A009424 A184597 * A009676 A192995 A027851
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
Definition clarified and previous Mathematica program replaced by Harvey P. Dale, Jun 10 2017
STATUS
approved

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Last modified May 26 09:40 EDT 2024. Contains 372824 sequences. (Running on oeis4.)