A Survey of Alternating Permutations by Richard P. Stanley
= A Survey of Alternating Permutations by Richard P. Stanley
{c}
{tag=Work by Richard P. Stanley}
{title2=2009 preprint}
By <Richard P. Stanley>. Preprint arXiv:0912.4240: https://arxiv.org/abs/0912.4240
Author-hosted text: https://math.mit.edu/~rstan/papers/altperm.pdf
§2, printed pages4–5, fixes the Entringer first-entry/down-up convention and its recurrence and triangular array.