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A328977
Number of planar 2-connected irreducible graphs with n vertices.
0
1, 2, 5, 19, 106, 897, 10160
OFFSET
3,2
REFERENCES
Garoufalidis, Stavros, and Thao Vuong. "Alternating knots, planar graphs, and q-series." The Ramanujan Journal 36.3 (2015): 501-527. See (29).
LINKS
Stavros Garoufalidis and Thao Vuong, Alternating knots, planar graphs and q-series, arXiv:1304.1071 [math.GT], 2013. See (29).
CROSSREFS
Sequence in context: A009311 A211207 A107882 * A224691 A192445 A089126
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Nov 03 2019
STATUS
approved