Andre Permutation Calculus; a Twin Seidel Matrix Sequence
Combinatorics
2016-01-19 v1
Abstract
Entringer numbers occur in the Andr\'e permutation combinatorial set-up under several forms. This leads to the construction of a matrix-analog refinement of the tangent (resp. secant) numbers. Furthermore, closed expressions for the three-variate exponential generating functions for pairs of so-called Entringerian statistics are derived.
Cite
@article{arxiv.1601.04371,
title = {Andre Permutation Calculus; a Twin Seidel Matrix Sequence},
author = {Dominique Foata and Guo-Niu Han},
journal= {arXiv preprint arXiv:1601.04371},
year = {2016}
}