Inversion Formulae on Permutations Avoiding 321

نویسندگان

  • Pingge Chen
  • Zhousheng Mei
  • Suijie Wang
چکیده

We will study the inversion statistic of 321-avoiding permutations, and obtain that the number of 321-avoiding permutations on [n] with m inversions is given by

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عنوان ژورنال:
  • Electr. J. Comb.

دوره 22  شماره 

صفحات  -

تاریخ انتشار 2015