Number of indecomposable closed walks of length 2n along the edges of a cube based at a vertex.

A328778

Number of indecomposable closed walks of length 2n along the edges of a cube based at a vertex.

Terms

    a(0) =1a(1) =3a(2) =12a(3) =84a(4) =588a(5) =4116a(6) =28812a(7) =201684a(8) =1411788a(9) =9882516a(10) =69177612a(11) =484243284a(12) =3389702988a(13) =23727920916a(14) =166095446412

External references