OFFSET
9,1
LINKS
Mednykh, A.; Nedela, R. Recent progress in enumeration of hypermaps, J. Math. Sci., New York 226, No. 5, 635-654 (2017) and Zap. Nauchn. Semin. POMI 446, 139-164 (2016)
CROSSREFS
KEYWORD
nonn
AUTHOR
R. J. Mathar, Aug 23 2022
STATUS
approved