158830

Appears in sequences

• Number of simple arrangements of n pseudolines in the projective plane with a marked cell. Number of Euclidean pseudo-order types: nondegenerate abstract order types of configurations of n points in the plane.at n=8A006247
• spt(n) - p(n): total number of smallest parts in all partitions of n minus the number of partitions of n.at n=39A215513