Number of isomorphism classes of non-commutative closed binary operations on a set of order n, listed by class size.

A079184

Number of isomorphism classes of non-commutative closed binary operations on a set of order n, listed by class size.

Terms

    a(0) =0a(1) =4a(2) =2a(3) =2a(4) =8a(5) =70a(6) =3121a(7) =2a(8) =1a(9) =14a(10) =22a(11) =275a(12) =467a(13) =48306a(14) =178888897

External references