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Homework Help: Help with generating function problem

  1. Oct 1, 2009 #1
    I'm really struggling with this generating function problem. Any help would be greatly appreciated.

    Find the generating function for the compositions (c1,c2,c3....,ck) such that for each i, ci is an odd integer at least 2i-1.

    Second part of question:

    Use the above solution to to find the number of compositions of a positive integer n into k parts (c1,c2...ck) such that for each i, ci is an odd integer at least 2i -1.
  2. jcsd
  3. Oct 1, 2009 #2


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    Science Advisor

    The "generating function" for a list of numbers is, by definition, the power series having those numbers as coefficients.
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