Number of nonisomorphic commutative groupoids with 1 idempotent and a nontrivial symmetry.
A030265
Number of nonisomorphic commutative groupoids with 1 idempotent and a nontrivial symmetry.
Terms
- a(0) =0a(1) =0a(2) =6a(3) =214a(4) =83925
External references
- oeis: A030265