Determining a formula for a (sub)sequence

  1. I currently have the first 125,256 terms of a sequence of natural numbers. I need to find a formula for any non-finite sub-sequence.

    Are there any good methods for obtaining such a formula? I can already say that it isn't a linear distribution, and I highly doubt it being polynomial (although it could involve a root function).

    Any help would be appreciated.

    Thanks.
     
  2. jcsd
  3. mathman

    mathman 6,622
    Science Advisor
    Gold Member

    How did you get the sequence?
     
  4. The sequence is the set of n's where | ∑[itex]_{k=0}^{n}[/itex] a[itex]_{k}[/itex]z[itex]^{k}[/itex] | is a local maximum in the sequence of the magnitudes of partial sums (the partial sums are complex valued).
     
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