Number of nonseparable rooted toroidal maps with n + 5 edges and n + 1 vertices.

A006410

Number of nonseparable rooted toroidal maps with n + 5 edges and n + 1 vertices.

Terms

    a(0) =20a(1) =651a(2) =8344a(3) =64667a(4) =361884a(5) =1607125a(6) =5997992a(7) =19535997a(8) =57014776a(9) =151986562a(10) =375470160a(11) =869285378a(12) =1902886024a(13) =3966657702a(14) =7920130544a(15) =15220758070a(16) =28268206764a(17) =50910912965a(18) =89176474920a(19) =152305796565a(20) =254193384900a(21) =415363487955a(22) =665644575960

External references