A214804 Number of rooted maps with n vertices and 2 faces on a non-orientable surface of type 2.

0, 11660, 375552, 6652366, 86303920, 918342738

Offset

0,2

Links

Table of n, a(n) for n=0..5.

Didier Arquès and Alain Giorgetti, Counting rooted maps on a surface, Theoret. Comput. Sci. 234 (2000), no. 1-2, 255--272. MR1745078 (2001f:05078).

Crossrefs

A diagonal of A214806.

Sequence in context: A231321 A154053 A151600 * A352330 A203821 A223598

Adjacent sequences: A214801 A214802 A214803 * A214805 A214806 A214807

Keyword

nonn,more

Author

N. J. A. Sloane, Jul 28 2012

Status

approved