0,2
Arques, Didier; and Giorgetti, Alain. Counting rooted maps on a surface. Theoret. Comput. Sci. 234 (2000), no. 1-2, 255--272. MR1745078 (2001f:05078).
Table of n, a(n) for n=0..5.
A diagonal of A214337.
Sequence in context: A273752 A213097 A063058 * A279529 A237394 A028541
Adjacent sequences: A214333 A214334 A214335 * A214337 A214338 A214339
nonn
N. J. A. Sloane, Jul 27 2012
approved