T262: $q,t$-Catalan numbers $C_n(q,t)$

This is the table as of 2026-09-16 08:47, by zeta3.
Run: QTCatalanNumbers-1789548450

table.yaml holds the numbers and everything said about them. The other
files are what was stored alongside them -- usually the code that
produced them. They are recorded, not run.

The table as it stands now: https://numberdb.org/T262
