In this editor you can enter or edit tables in YAML format, and you can get a preview of how numberdb would render it.
You cannot save changes here.
Once everything looks good, upload it to the git repository numberdb-data.
The $n$'th diagonal Ramsey number is the least positive integer $R(n,n)$ such that any blue-red edge coloring of the complete graph on $R(n,n)$ vertices has a monochromatic $n$-clique.