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Timeline for Help with a double sum, please

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Apr 17, 2010 at 12:39 comment added Wadim Zudilin There is a version of Gosper-Zeilberger for hypergeometric double sums as well (the whole machinery works for multiple sums as well, at least theoretically). The Mathematica packages are done by RISC people in Linz, Austria.
Jan 24, 2010 at 6:22 comment added Quadrescence Well, this is a particularly difficult sum since it's not hypergeometric, which is what many sums dealt with via Zeilberger's and related methods are good at. It'd be particularly hard to convert this into a holonomic recurrence with the $2^{-j}$, no? Anyway, I haven't tried $A=B$ packages specifically, but I have tried using computer algebra systems with their summation algorithms to at least evaluate it even without proof.
Jan 24, 2010 at 6:08 history answered Kim Morrison CC BY-SA 2.5