A009602 Expansion of e.g.f. sinh(tan(sin(x))) (odd powers only).

1, 2, 8, -64, -5632, -205184, -240640, 859820032, 90170851328, 1502445600768, -1320541298393088, -272882319216148480, -10828284839119028224, 10466976817322751164416, 3607763969688114359697408

Offset

0,2

Links

G. C. Greubel, Table of n, a(n) for n = 0..247 (terms 0..50 from Vincenzo Librandi)

Mathematica

With[{nn=30}, Take[CoefficientList[Series[Sinh[Tan[Sin[x]]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Nov 16 2011 *)

Prog

(PARI) x='x+O('x^30); Vec(serlaplace(sinh(tan(sin(x))))) \\ G. C. Greubel, Jan 30 2018

Crossrefs

Sequence in context: A361007 A091794 A013134 * A248028 A011836 A309251

Adjacent sequences: A009599 A009600 A009601 * A009603 A009604 A009605

Keyword

sign

Author

R. H. Hardin

Extensions

Extended with signs by Olivier Gérard, Mar 15 1997

Status

approved