A007028 Number of bipartite polyhedral graphs with n nodes.
1, 0, 1, 1, 5, 5, 21, 40, 176, 500, 2053, 7532, 31206, 124552, 521332, 2167599, 9183879, 38965327, 166956753, 718004565, 3107450143, 13502835176, 58956369552, 258398671525
Offset: 8
Keywords
References
- M. B. Dillencourt, Polyhedra of small orders and their Hamiltonian properties. Tech. Rep. 92-91, Info. and Comp. Sci. Dept., Univ. Calif. Irvine, 1992.
- N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Links
- Gunnar Brinkmann and Brendan McKay, plantri and fullgen programs for generation of certain types of planar graph.
- Gunnar Brinkmann and Brendan McKay, plantri and fullgen programs for generation of certain types of planar graph [Cached copy, pdf file only, no active links, with permission]
- CombOS - Combinatorial Object Server, generate planar graphs
- M. B. Dillencourt, Polyhedra of small orders and their Hamiltonian properties, Journal of Combinatorial Theory, Series B, Volume 66, Issue 1, January 1996, Pages 87-122.
- Iva Kodrnja and Helena Koncul, Number of Polynomials Vanishing on a Basis of S_m(Gamma_0(N)), arXiv:2405.10747 [math.NT], 2024. See p. 10.
Programs
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plantri
for n in {8..25}; do plantri -bpu ${n}; done # Sean A. Irvine, Apr 29 2016
Extensions
a(23)-a(31) computed using plantri by Sean A. Irvine, Apr 29 2016