robinhoustonrobinhouston@mathstodon.xyz
Oct 1, 2026, 9:06 AMAbsolutely amazing progress on short superpermutations from Jay Pantone and his AI collaborators: https://github.com/jaypantone/superperm-upper-43-80
This breaks the existing records for all n > 7.
Here is a superpermutation on 8 symbols of length 46,181 – a lot shorter than any that was previously known: https://github.com/jaypantone/superperm-upper-43-80/blob/main/words/8/superpermutation-8-46181.txt