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A343089
Number of nonseparable rooted toroidal maps with n edges.
2
1, 8, 59, 420, 2940, 20384, 140479, 964184, 6598481, 45059872, 307197620, 2091615760, 14226362200, 96680047568, 656559634503, 4456100344560, 30228597199443, 204971912361512, 1389342336011059, 9414200925647540, 63772600432265968, 431892497914345472
OFFSET
2,2
LINKS
CROSSREFS
Row sums of A342989.
Cf. A006300.
Sequence in context: A047867 A002538 A263503 * A112424 A190977 A254662
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Apr 04 2021
STATUS
approved