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A013062
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sinh(sinh(x)+arctan(x))=2*x+7/3!*x^3+17/5!*x^5+1089/7!*x^7...
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0
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2, 7, 17, 1089, -36439, 4128909, -543199915, 101851512369, -24809162213327, 7679423522214741, -2941007926918920787, 1365818062351654896985, -756306211537089880852727, 492352824778983285953918013
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OFFSET
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0,1
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LINKS
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Table of n, a(n) for n=0..13.
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MATHEMATICA
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With[{nn=30}, Take[CoefficientList[Series[Sinh[Sinh[x]+ArcTan[x]], {x, 0, nn}], x]Range[0, nn-1]!, {2, -1, 2}]] (* From Harvey P. Dale, Mar 09 2012 *)
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CROSSREFS
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Sequence in context: A028888 A082627 A160617 * A013092 A174311 A220396
Adjacent sequences: A013059 A013060 A013061 * A013063 A013064 A013065
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KEYWORD
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sign
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AUTHOR
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Patrick Demichel (patrick.demichel(AT)hp.com)
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STATUS
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approved
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