{
  "id": "1505.04929",
  "version": "v1",
  "published": "2015-05-19T09:42:37.000Z",
  "updated": "2015-05-19T09:42:37.000Z",
  "title": "Central binomial coefficients also count (2431,4231,1432,4132)-avoiders",
  "authors": [
    "Marie-Louise Bruner"
  ],
  "comment": "8 pages, 1 figure",
  "categories": [
    "math.CO"
  ],
  "abstract": "This short paper is concerned with the enumeration of permutations avoiding the following four patterns: $2431$, $4231$, $1432$ and $4132$. Using a bijective construction, we prove that these permutations are counted by the central binomial coefficients.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-05-19T09:42:37.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "05A05",
      "05A10"
    ],
    "keywords": [
      "central binomial coefficients",
      "short paper",
      "permutations"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015arXiv150504929B"
    }
  }
}