Number of abelian/medial racks of order n, up to isomorphism.
A383144
Number of abelian/medial racks of order n, up to isomorphism.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =18a(5) =68a(6) =329a(7) =1965a(8) =15455a(9) =155902a(10) =2064870a(11) =35982366a(12) =832699635a(13) =25731050872
External references
- oeis: A383144