|
|
A009811
|
|
Expansion of tanh(tan(x))*sin(x).
|
|
1
|
|
|
0, 2, -4, -42, -456, 10154, 1263668, 74121726, 1582556016, -396499390126, -87145255604884, -10528569148387290, -379538283994219608, 201132350259244110074, 52827499211277672807332
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
LINKS
|
|
|
MATHEMATICA
|
With[{nn=30}, Take[CoefficientList[Series[Tanh[Tan[x]] Sin[x], {x, 0, nn}], x] Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, May 17 2021 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
sign
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|