OFFSET
0,3
FORMULA
a(n) = sum(k=1..n/2, ((-1)^(k-1)*2*k*stirling1(n,2*k))). - Vladimir Kruchinin, Jun 28 2011
MATHEMATICA
Sin[ Log[ 1+x ] ]*Log[ 1+x ]
CoefficientList[Series[Sin[Log[1+x]]*Log[1+x], {x, 0, 20}], x] * Range[0, 20]! (* Vaclav Kotesovec, Jan 24 2015 *)
PROG
(Maxima) a(n):=sum(((-1)^(k-1)*2*k*stirling1(n, 2*k)), k, 1, n/2); /* Vladimir Kruchinin, Jun 28 2011 */
CROSSREFS
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved