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 A009448 E.g.f. sin(x*exp(x)). 5
 0, 1, 2, 2, -8, -84, -504, -2304, -6656, 15760, 484000, 5348320, 44393856, 288642368, 1137006976, -5372233216, -195241910272, -2961479980800, -34259767672320, -320473550808576, -2158264400250880, -1727938748171264, 278774033845987328 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS FORMULA a(n)=sum(j=0..(n-1)/2, binomial(n,2*j+1)*(2*j+1)^(n-2*j-1)*(-1)^j). - Vladimir Kruchinin, Jun 10 2011 MATHEMATICA With[{nn=30}, CoefficientList[Series[Sin[x Exp[x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Mar 17 2012 *) PROG (Maxima) a(n):=sum(binomial(n, 2*j+1)*(2*j+1)^(n-2*j-1)*(-1)^j, j, 0, (n-1)/2); /* Vladimir Kruchinin, Jun 10 2011 */ CROSSREFS Sequence in context: A297010 A012413 A012659 * A012410 A295382 A123642 Adjacent sequences:  A009445 A009446 A009447 * A009449 A009450 A009451 KEYWORD sign,easy AUTHOR EXTENSIONS Extended with signs by Olivier Gérard, Mar 15 1997 STATUS approved

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Last modified February 16 05:00 EST 2019. Contains 320140 sequences. (Running on oeis4.)