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Sep 11, 2011 at 12:50 comment added Gerald Edgar Usually I do this the other way around. I have a power series, and want its sum, so if I can find a DE it satisfies, then solve the DE to get the result!
Sep 11, 2011 at 6:41 vote accept anksh
Sep 11, 2011 at 6:41 vote accept anksh
Sep 11, 2011 at 6:41
Sep 10, 2011 at 18:42 answer added Igor Rivin timeline score: 2
Sep 10, 2011 at 16:22 history asked anksh CC BY-SA 3.0