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A new way of counting n
Authors:Young-Ching Deng  Yue-Li Wang   Jou-Ming Chang
Affiliation:

Department of Information Management National Taiwan Institute of Technology, Taipei, Taiwan 10772, R.O.C.

Department of Electronic Data Processing National Taipei College of Business, Taipei, Taiwan, R.O.C.

Abstract:In this paper, we shall give a combinatorial proof of the following equation:
,

where m and n are positive integers, mn, and k1, k2, …, kn-1 are nonnegative integers.

Keywords:Graph theory   Combinatorial enumeration   Forest
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