English

The number of convex pentagons and hexagons in an $n$-triangular net

Combinatorics 2010-12-21 v1

Abstract

In this paper, we obtain the counting formulaes of convex pentagons and convex hexagons, respectively, in an nn-triangular net by solving the corresponding recursive formulaes.

Keywords

Cite

@article{arxiv.1012.4058,
  title  = {The number of convex pentagons and hexagons in an $n$-triangular net},
  author = {Jun-Ming Zhu},
  journal= {arXiv preprint arXiv:1012.4058},
  year   = {2010}
}

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6 pages