1,3
D. Renault, The vertex-transitive TLF-planar graphs, Discrete Math., 309 (2009), 2815-2833.
Table of n, a(n) for n=1..6.
Cf. A151718.
Sequence in context: A060822 A011926 A101120 * A188377 A213585 A308579
Adjacent sequences: A151714 A151715 A151716 * A151718 A151719 A151720
nonn
N. J. A. Sloane, Jun 09 2009
approved