A012352 - OEIS

A012352

Expansion of e.g.f.: sin(tan(x)*log(x+1))=2/2!*x^2-3/3!*x^3+16/4!*x^4-50/5!*x^5...

0, 0, 2, -3, 16, -50, 200, -336, -6064, 116712, -1823552, 24444200, -343290400, 4725483984, -68637208848, 1009375584840, -15551178814464, 244877850035008, -4005060390790656, 66944176204337280

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OFFSET

0,3

LINKS

Table of n, a(n) for n=0..19.

MATHEMATICA

With[{nn=20}, CoefficientList[Series[Sin[Tan[x]Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jan 17 2017 *)

CROSSREFS

Sequence in context: A012357 A012701 A012356 * A012704 A012698 A302611

Adjacent sequences: A012349 A012350 A012351 * A012353 A012354 A012355

KEYWORD

sign

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

EXTENSIONS

Definition clarified and leading zeros prepended by Harvey P. Dale, Jan 17 2017

STATUS

approved