Number of nonisomorphic loopless matroids of rank 3 on n labeled points.

A058719

Number of nonisomorphic loopless matroids of rank 3 on n labeled points.

Terms

    a(0) =1a(1) =3a(2) =9a(3) =25a(4) =70a(5) =217a(6) =950a(7) =8762a(8) =288454

External references