Number of nonisomorphic commutative groupoids with no idempotents and no symmetry.
A030261
Number of nonisomorphic commutative groupoids with no idempotents and no symmetry.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =35a(4) =13776a(5) =83306272
External references
- oeis: A030261