A214815 Number of unsensed genus 3 maps with n edges.

0, 0, 0, 0, 0, 0, 82, 4348, 160050, 4696504, 118353618, 2675297588, 55758114082, 1091344752470, 20318440463052, 363171011546210, 6275111078422480, 105369657960443204, 1726590417107274316, 27699670730854989616, 436246336648672487876

Offset

0,7

Links

Table of n, a(n) for n=0..20.

Evgeniy Krasko and Alexander Omelchenko, Enumeration of Unsensed Orientable Maps on Surfaces of a Given Genus, arXiv:1712.10139 [math.CO], 2017.

Timothy R. Walsh, Space-efficient generation of nonisomorphic maps and hypermaps.

T. R. Walsh, Space-Efficient Generation of Nonisomorphic Maps and Hypermaps, J. Int. Seq. 18 (2015) # 15.4.3

Crossrefs

Column k=3 of A379439.

Cf. A104742 (rooted), A104596 (sensed).

Cf. A006385, A006387, A214814, A214816.

Sequence in context: A017745 A217676 A203169 * A280959 A252705 A239670

Adjacent sequences: A214812 A214813 A214814 * A214816 A214817 A214818

Keyword

nonn

Author

N. J. A. Sloane, Jul 31 2012

Extensions

More terms from Evgeniy Krasko, Sep 17 2017

Status

approved