Number of fixed triangular strip polyedges with n edges.

A213451

Number of fixed triangular strip polyedges with n edges.

Terms

    a(0) =3a(1) =15a(2) =69a(3) =309a(4) =1365a(5) =5973a(6) =25941a(7) =112065a(8) =482067a(9) =2066583a(10) =8834469a(11) =37677603a(12) =160367343

External references