A239918 Number of unrooted maps with n edges of (orientable) genus 5.

2976853, 391288854, 28036387466, 1449247494892, 60441165724160, 2158501051914340, 68463726004852884, 1976314846820429680, 52825750657523709792, 1324265997531577820388, 31439565426089264422698, 712298211293218414835136

Offset

10,1

Links

Table of n, a(n) for n=10..21.

Timothy R. S. Walsh, Alain Giorgetti, Alexander Mednykh, Enumeration of unrooted orientable maps of arbitrary genus by number of edges and vertices, Discrete Math. 312 (2012), no. 17, 2660--2671. MR2935417

Crossrefs

Column k=5 of A379438.

Cf. A238355 (rooted), A297881 (unsensed).

Cf. A006386, A104595, A104596, A215019.

Sequence in context: A238179 A205095 A233652 * A254511 A254518 A254818

Adjacent sequences: A239915 A239916 A239917 * A239919 A239920 A239921

Keyword

nonn,more

Author

Alain Giorgetti, Mar 29 2014

Status

approved