Number of 3-regular maps with 2n vertices on the torus, up to orientation-preserving and orientation-reversing isomorphisms.

A292405

Number of 3-regular maps with 2n vertices on the torus, up to orientation-preserving and orientation-reversing isomorphisms.

Terms

    a(0) =1a(1) =5a(2) =40a(3) =450a(4) =6370a(5) =104498a(6) =1843324a(7) =33778574a(8) =632053347a(9) =11983323029a(10) =229304019611

External references