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A009135
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Expansion of cosh(ln(1+x).exp(x)).
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1
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1, 0, 1, 3, 12, 30, 180, 490, 5600, 8064, 276360, -575872, 22950576, -166106512, 3194871680, -38456524080, 663548916992, -10330038449792, 186243968575488, -3385894106098944, 66478140305126272, -1354838641265098752
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..200
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MATHEMATICA
| With[{nn=30}, CoefficientList[Series[Cosh[Log[1+x]*Exp[x]], {x, 0, nn}], x]Range[0, nn]!] (* From Harvey P. Dale, Nov 29 2011 *)
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CROSSREFS
| Sequence in context: A073952 A107231 A131936 * A131740 A037237 A005718
Adjacent sequences: A009132 A009133 A009134 * A009136 A009137 A009138
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KEYWORD
| sign,easy
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AUTHOR
| R. H. Hardin (rhhardin(AT)att.net)
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EXTENSIONS
| Extended with signs Mar 15 1997 by Olivier Gerard.
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