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A009612
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Expansion of e.g.f. sinh(tan(x)/cos(x)), odd powers only.
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1
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1, 6, 112, 4592, 318208, 32169984, 4399544320, 779244812288, 173483433263104, 47421793222656000, 15607317689652477952, 6082241638882756001792, 2766961182829040965255168, 1451710442535733909612658688
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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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 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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