Number of isomorphism classes of non-associative commutative closed binary operations on a set of order n, listed by class size.
A079197
Number of isomorphism classes of non-associative commutative closed binary operations on a set of order n, listed by class size.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =1a(4) =4a(5) =5a(6) =107a(7) =0a(8) =0a(9) =0a(10) =5a(11) =0a(12) =28a(13) =488a(14) =43389
External references
- oeis: A079197