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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
OFFSET
0,4
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: A004076 A365974 A013369 * A365973 A156433 A169771
KEYWORD
nonn
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
Definition clarified by Harvey P. Dale, Dec 11 2017
STATUS
approved