Ask for help to evaluate an equation

*To*: mathgroup at smc.vnet.net*Subject*: [mg129112] Ask for help to evaluate an equation*From*: Hugo <hpe650820 at gmail.com>*Date*: Sun, 16 Dec 2012 01:07:08 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net

I want to evaluate the following equation with mathematica but it seems i'm doing something wrong. Sum[(-1)^n/A^(n+1)t^(1+n-k(1-eta))beta^(n-k) Binomial[n,k](alpha Gamma[1-eta])^k/Gamma[2+n-k(1-eta)],{n,0,Infinity},{k,0,Infinity}] Any help would be appreciate it Hugo Perea