Stanley–Wilf limit for the permutation pattern 1324 (30a)

Stanley–Wilf limit for the permutation pattern 1324

30a

Upper bound, last-listed row

| $13.5$ | [[BBEPP2017](#BBEPP2017)] | Current best rigorous upper bound. [BBEPP2017-t1-thiswork] |

exact pinned row

| $13.5$ | [[BBEPP2017](#BBEPP2017)] | Current best rigorous upper bound. <a href="#BBEPP2017-t1-thiswork">[BBEPP2017-t1-thiswork]</a> |

tracked since 2026-07-24 — no movement seen yet

Lower bound, last-listed row

| $10.27$ | [[BBEPP2017](#BBEPP2017)] | Current best rigorous lower bound. [BBEPP2017-t1-thiswork] |

exact pinned row

| $10.27$ | [[BBEPP2017](#BBEPP2017)] | Current best rigorous lower bound. <a href="#BBEPP2017-t1-thiswork">[BBEPP2017-t1-thiswork]</a> |

tracked since 2026-07-24 — no movement seen yet

Cite this row

Bounds Ledger — Stanley–Wilf limit for the permutation pattern 1324 (30a)
upper bound: $13.5$ (tracked since 2026-07-24 — no movement seen yet)
lower bound: $10.27$ (tracked since 2026-07-24 — no movement seen yet)
Mirrored from teorth/optimizationproblems@2c1968c. These are the last-listed rows of that constant's bounds table — a listing position, not a statement that this bound is the strongest or most recent. A snapshot at that sha, not a live read.
https://u00dxk2.github.io/bounds-ledger/c/30a.html