This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A202152 E.g.f. exp(x*(1+x)^x) 0
 1, 1, 1, 7, 13, 101, 361, 2269, 18201, 48817, 1436401, -2283269, 157443397, -826037939, 21355181849, -160556822999, 3084325024561, -22223879489055, 291212769688417, 2180748026158255, -118745486165378819, 4884619264768661461, -140063412525642293687, 4020051993317128467029 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS FORMULA a(n)=n!*sum(m=1..n, sum(k=0..n-m, (m^k*stirling1(n-m-k,k))/(n-m-k)!)/m!), n>0, a(0)=1. PROG (Maxima) a(n):=if n=0 then 1 else n!*sum(sum((m^k*stirling1(n-m-k, k))/(n-m-k)!, k, 0, n-m)/m!, m, 1, n) CROSSREFS Sequence in context: A253333 A039687 A001544 * A136720 A323468 A035030 Adjacent sequences:  A202149 A202150 A202151 * A202153 A202154 A202155 KEYWORD sign AUTHOR Vladimir Kruchinin, Dec 12 2011 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 25 09:48 EDT 2019. Contains 326324 sequences. (Running on oeis4.)