Skip to main content
4 events
when toggle format what by license comment
Apr 9, 2013 at 6:36 vote accept guaraqe
Apr 9, 2013 at 1:18 answer added Richard Stanley timeline score: 4
Apr 8, 2013 at 23:37 comment added Leonid Petrov Maybe you want to use generating functions here? The sum in question should be representable as a n-th coefficient in some generating function. For $S^n_k$ some generating functions are known (mathworld.wolfram.com/StirlingNumberoftheSecondKind.html, especially (14)-(16)). Pochhammers can arise from some operation on GF's (see Wilf's Generatingfunctionology)
Apr 8, 2013 at 20:15 history asked guaraqe CC BY-SA 3.0