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A133236
Number of bipartite planar graphs with 2n nodes and at least one zero eigenvector.
1
0, 1, 0, 1, 11, 8, 70, 613, 1225, 11330, 120628
OFFSET
2,5
REFERENCES
Sciriha, I. and Fowler, P.W., Nonbonding Orbitals in Fullerenes: Nuts and Cores in Singular Polyhedral Graphs J. Chem. Inf. Model., 47, 5, 1763 - 1775, 2007.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 14 2007
STATUS
approved