n=9 superpermutation of length 408,964
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Theo H.
Sep 29, 2026, 8:23:44 PM (11 days ago) Sep 29
to Superpermutators
Hi all,
The recent developments here have been very exciting. In addition to Raudvere and Echols's clean constructions, and the jaw dropping n=8 silent PR by rumstd, there has been a lot of mathematical work that is super interesting.
I want to share an Egan length - 2 savings I was able to discover with the help of ChatGPT. Of note, it has 240 repeat permutations.
Could someone please verify this and make sure it's not a fluke?
Best,
Theo H.
The recent developments here have been very exciting. In addition to Raudvere and Echols's clean constructions, and the jaw dropping n=8 silent PR by rumstd, there has been a lot of mathematical work that is super interesting.
I want to share an Egan length - 2 savings I was able to discover with the help of ChatGPT. Of note, it has 240 repeat permutations.
Could someone please verify this and make sure it's not a fluke?
Best,
Theo H.
Theo H.
Oct 1, 2026, 8:16:48 AM (10 days ago) Oct 1
to Superpermutators
Hi all,
I have attached a canonical version of the original permutation that I discovered (begins 12345678912345678...)
I have also discovered an Egan length - 12 superpermutation of n=9 symbols using a stronger lift of the n=8 rumstd word, and converted it to canonical form.
Best,
Theo H.
I have attached a canonical version of the original permutation that I discovered (begins 12345678912345678...)
I have also discovered an Egan length - 12 superpermutation of n=9 symbols using a stronger lift of the n=8 rumstd word, and converted it to canonical form.
Best,
Theo H.
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