|
| |
|
|
A009554
|
|
Expansion of sin(x)/cos(sinh(x)).
|
|
0
| |
|
|
1, 2, 36, 944, 45136, 3263072, 334656960, 46199442176, 8260388524288, 1857027989588480, 512693973356712960, 170529221696594702336, 67257392621575577522176, 31036094843772953163063296
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
MATHEMATICA
| With[{nn=30}, Take[CoefficientList[Series[Sin[x]/Cos[Sinh[x]], {x, 0, nn}], x]Range[0, nn-1]!, {2, -1, 2}]] (* From Harvey P. Dale, Jan 19 2012 *)
|
|
|
CROSSREFS
| Sequence in context: A001626 A166473 A009539 * A003092 A187535 A046673
Adjacent sequences: A009551 A009552 A009553 * A009555 A009556 A009557
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| R. H. Hardin (rhhardin(AT)att.net)
|
|
|
EXTENSIONS
| Extended and signs tested Mar 15 1997 by Olivier Gerard.
|
| |
|
|
