OFFSET
0,2
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 0..238
MATHEMATICA
With[{nn=40}, Flatten[{0, Take[Drop[CoefficientList[Series[ArcSinh[Sin[x]-Sinh[x]], {x, 0, nn}], x]Range[0, nn-1]!, 2], {2, -1, 2}]}]] (* Harvey P. Dale, Oct 19 2011 *)
CROSSREFS
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
Prepended missing a(0)=0 from Vaclav Kotesovec, Feb 04 2015
STATUS
approved