Talk:Enumerations of specific permutation classes

The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Missing online appendix

The paper by Kremer & Shiu (2003) includes only the enumeration for the large Wilf-equivalence class, listed here with bases {4321, 4123}, {4321, 3412}, {4123, 3214}, and {4123, 2143}. The derivations of the remaining seven enumerations appeared in an online appendix. I distinctly remember this appendix, and I think I also recall a much longer preprint version of the paper that included these enumerations.

Unfortunately, I can no longer locate either the appendix or the preprint. Does anyone know where one of these two might still be accessible? Vince Vatter (talk) 16:56, 4 June 2025 (UTC)[reply]

@Vince Vatter: If you go to the paper the appendix is mentioned in the abstract and there is a tiny little link at the bottom that says "Electronic Appendixes available. See http://www.elsevier.com/locate/disc" but that link does not point anywhere. Perhaps you should reach out to the editor-in-chief. --JBL (talk) 17:52, 5 June 2025 (UTC)[reply]

Clarify meaning of table entries?

An IP editor was recently confused by the use of "polynomial" (when the sequence is itself a polynomial in the length of the permutations) vs. "rational g.f." (which includes the former class as a subclass, but is a description of the g.f. for the sequence rather than the sequence itself). Perhaps there is some way to add a key or other explanatory text so that people less familiar with the terminology will be able to understand this article better? --JBL (talk) 13:41, 16 August 2012 (UTC)[reply]