Third right hand column of triangles A094665 and A083061.

A160470

Third right hand column of triangles A094665 and A083061.

Terms

    a(0) =4a(1) =147a(2) =4095a(3) =107415a(4) =2837835a(5) =77567490a(6) =2219186970a(7) =66782365650

External references