Closed form for expansion involving binomial coefficients

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Consider the following expansion in terms of binomial coefficients



$sumlimits_i=1^u binomk-ik-r (r+2)^i-1$



Is there any closed form for this expression?







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    Consider the following expansion in terms of binomial coefficients



    $sumlimits_i=1^u binomk-ik-r (r+2)^i-1$



    Is there any closed form for this expression?







    share|cite|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Consider the following expansion in terms of binomial coefficients



      $sumlimits_i=1^u binomk-ik-r (r+2)^i-1$



      Is there any closed form for this expression?







      share|cite|improve this question














      Consider the following expansion in terms of binomial coefficients



      $sumlimits_i=1^u binomk-ik-r (r+2)^i-1$



      Is there any closed form for this expression?









      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Aug 9 at 7:34

























      asked Aug 8 at 19:23









      hanugm

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