A012432 - OEIS

A012432

exp(arctan(x)*arcsin(x))=1+2/2!*x^2+8/4!*x^4+158/6!*x^6+4104/8!*x^8...

1, 2, 8, 158, 4104, 346602, 24240372, 4851149886, 651838359408, 239431266389586, 52363260776961132, 30711336758113317990, 9908919510460647921960, 8503014202216759714206330, 3792595745728445864618214180, 4484803880283207420946418876430

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..15.

MATHEMATICA

With[{nn=30}, Take[CoefficientList[Series[Exp[ArcTan[x]ArcSin[x]], {x, 0, nn}], x] Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Aug 18 2014 *)

CROSSREFS

Sequence in context: A009596 A012571 A018926 * A071097 A012537 A012540

Adjacent sequences: A012429 A012430 A012431 * A012433 A012434 A012435

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

More terms from Harvey P. Dale, Aug 18 2014

STATUS

approved