Critical connected topologies with n points.

A003097

Critical connected topologies with n points.

Terms

    a(0) =1a(1) =3a(2) =7a(3) =20a(4) =52a(5) =157a(6) =458a(7) =1436a(8) =4531a(9) =14794a(10) =48944a(11) =165314

External references