A012978 sinh(arctan(x)+sin(x))=2*x+5/3!*x^3-63/5!*x^5+1087/7!*x^7...

2, 5, -63, 1087, -51399, 4655147, -614607875, 110785434767, -26276828035887, 7942606908264467, -2980404613442707547, 1359327160139797369495, -740576016766767185246407, 475017662287177042879384091

Offset

0,1

Links

Table of n, a(n) for n=0..13.

Mathematica

With[{nn=30}, Take[CoefficientList[Series[Sinh[ArcTan[x]+Sin[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Oct 20 2015 *)

Crossrefs

Sequence in context: A041069 A217053 A134590 * A012949 A027667 A076630

Adjacent sequences: A012975 A012976 A012977 * A012979 A012980 A012981

Keyword

sign

Author

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

Status

approved