A. Lazar, and M. Wachs. (2018)cite arxiv:1811.06882Comment: 12 pages, 4 figures. An extended abstract, accepted to conference proceedings of Formal Power Series and Algebraic Combinatorics (FPSAC), 2019. (V2): Improvements of some results, and minor corrections. (V3): Addition of Theorem 4.5, addition of two references, and minor edits.