A012063 exp(arcsin(arcsin(x)))=1+x+1/2!*x^2+3/3!*x^3+9/4!*x^4+49/5!*x^5...

1, 1, 1, 3, 9, 49, 249, 1963, 14129, 146017, 1362961, 17450227, 200409465, 3064381137, 41812246345, 744091967643, 11765081428705, 239039270010305, 4298599985014945, 98237724213189475, 1980239469431883625

Offset: 0

Author

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

Keywords

• nonn

Programs

Mathematica

With[{nn=30},CoefficientList[Series[Exp[ArcSin[ArcSin[x]]],{x,0,nn}], x]Range[0,nn]!] (* Harvey P. Dale, Jan 04 2012 *)

Extensions

Confirmed by N. J. A. Sloane, Dec 17 2011