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A013416 Expansion of e.g.f.: exp(arcsin(x)-arcsinh(x))=1+2/3!*x^3+40/6!*x^6+450/7!*x^7+2240/9!*x^9... 0
1, 0, 0, 2, 0, 0, 40, 450, 0, 2240, 108000, 1786050, 246400, 30888000, 1647734400, 36567781250, 11531520000, 1356752592000, 85195294912000, 2380490964101250, 1210714801920000, 153377369153840000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..21.

MATHEMATICA

With[{nn=30}, CoefficientList[Series[Exp[ArcSin[x]-ArcSinh[x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Dec 11 2017 *)

CROSSREFS

Sequence in context: A230469 A004076 A013369 * A156433 A169771 A326779

Adjacent sequences:  A013413 A013414 A013415 * A013417 A013418 A013419

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

Definition clarified by Harvey P. Dale, Dec 11 2017

STATUS

approved

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Last modified August 9 04:23 EDT 2022. Contains 356016 sequences. (Running on oeis4.)