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A013389
sin(sin(x)-arctanh(x))=-3/3!*x^3-23/5!*x^5-721/7!*x^7-32759/9!*x^9...
0
3, 23, 721, 32759, 2672461, 310461227, 49895013169, 10516703525327, 2811203923750741, 926105108276716115, 367211453075540071769, 171643737525955364628727, 92766252900694480314741821
OFFSET
0,1
MATHEMATICA
With[{nn=30}, Take[-CoefficientList[Series[Sin[Sin[x]-ArcTanh[x]], {x, 0, nn}], x] Range[0, nn-1]!, {4, -1, 2}]] (* Harvey P. Dale, Jan 01 2014 *)
CROSSREFS
Sequence in context: A333739 A119669 A013391 * A013393 A013390 A144986
KEYWORD
nonn
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved