login
A013057
sin(sinh(x)+arctan(x))=2*x-9/3!*x^3+97/5!*x^5-3647/7!*x^7...
0
2, -9, 97, -3647, 232345, -22882827, 3272680621, -637916495327, 162606798592913, -52505736635681875, 20944212007429454773, -10113746586163575672327, 5814258990406275572824793
OFFSET
0,1
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[Sin[Sinh[x]+ArcTan[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, May 18 2020 *)
CROSSREFS
Sequence in context: A111847 A013132 A317275 * A237929 A227258 A027686
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved