A009605 Expansion of e.g.f. sinh(tan(x))*exp(x).

0, 1, 2, 6, 16, 72, 288, 1848, 9920, 81088, 541184, 5318016, 42274816, 483162240, 4449451776, 57865303296, 605255720960, 8815813734400, 103187353223168, 1662921003208704, 21528004660707328, 380141599264751616, 5391886872902762496, 103492751953073897472

Offset

0,3

Links

G. C. Greubel, Table of n, a(n) for n = 0..450

Mathematica

With[{nn = 50}, CoefficientList[Series[Sinh[Tan[x]]*Exp[x], {x, 0, nn}], x]*Range[0, nn]!] (* G. C. Greubel, Jan 30 2018 *)

Prog

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

Crossrefs

Sequence in context: A283420 A121749 A009386 * A009681 A009186 A009328

Adjacent sequences: A009602 A009603 A009604 * A009606 A009607 A009608

Keyword

nonn,easy

Author

R. H. Hardin

Extensions

Extended and signs tested by Olivier Gérard, Mar 15 1997

Status

approved