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A009612 Expansion of e.g.f. sinh(tan(x)/cos(x)), odd powers only. 1
1, 6, 112, 4592, 318208, 32169984, 4399544320, 779244812288, 173483433263104, 47421793222656000, 15607317689652477952, 6082241638882756001792, 2766961182829040965255168, 1451710442535733909612658688 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[Sinh[Tan[x]/Cos[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Oct 22 2013 *)
CROSSREFS
Sequence in context: A024274 A162081 A296949 * A009798 A341478 A088668
KEYWORD
nonn
AUTHOR
EXTENSIONS
Extended by Olivier Gérard, Mar 15 1997
Prior Mathematica program replaced by Harvey P. Dale, Oct 22 2013
STATUS
approved

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Last modified July 17 09:00 EDT 2024. Contains 374363 sequences. (Running on oeis4.)