Number of spanning trees in a Moebius ladder M_n with 2n vertices.

A020871

Number of spanning trees in a Moebius ladder M_n with 2n vertices.

Terms

    a(0) =0a(1) =3a(2) =16a(3) =81a(4) =392a(5) =1815a(6) =8112a(7) =35301a(8) =150544a(9) =632043a(10) =2620880a(11) =10759353a(12) =43804824a(13) =177105279a(14) =711809392a(15) =2846259405a(16) =11330543648a(17) =44929049811a(18) =177540878736a(19) =699402223137

External references