|
|
A012559
|
|
cos(sinh(x)*arctan(x))=1-12/4!*x^4+120/6!*x^6-5040/8!*x^8...
|
|
1
|
|
|
1, 0, -12, 120, -5040, 398400, -42267456, 6511220352, -1348919320320, 361546293368832, -121866178161646592, 50449587034359175168, -25164869672254098452480, 14886957060645519281602560
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
LINKS
|
|
|
MATHEMATICA
|
With[{nn=30}, Take[CoefficientList[Series[Cos[Sinh[x]ArcTan[x]], {x, 0, nn}], x]Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Oct 16 2012 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
sign
|
|
AUTHOR
|
Patrick Demichel (patrick.demichel(AT)hp.com)
|
|
STATUS
|
approved
|
|
|
|