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A322917
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a(n) is the number of rooted 5-regular maps with 2n vertices on the torus.
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1
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120, 125280, 120800160, 113579366400, 105549958379520, 97452182769223680, 89611995665911173120, 82178813933957614141440, 75217069050598359088496640, 68747100051073934332046868480
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..10.
E. Krasko, A. Omelchenko, Enumeration of r-regular Maps on the Torus. Part I: Enumeration of Rooted and Sensed Maps, arXiv:1709.03225 [math.CO], 2017.
E. Krasko, A. Omelchenko, Enumeration of r-regular maps on the torus. Part I: Rooted maps on the torus, the projective plane and the Klein bottle. Sensed maps on the torus, Discrete Mathematics, Volume 342, Issue 2, February 2019, Pages 584-599.
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CROSSREFS
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Sequence in context: A157879 A008978 A077692 * A184127 A068296 A123380
Adjacent sequences: A322914 A322915 A322916 * A322918 A322919 A322920
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KEYWORD
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nonn,more
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AUTHOR
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Evgeniy Krasko, Dec 30 2018
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STATUS
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approved
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