OFFSET
2,8
COMMENTS
The graphs R2 and R4 are given on p. 281 of Holton. - Sean A. Irvine, Oct 09 2017
REFERENCES
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
D. A. Holton et al., Hamiltonian cycles in cubic 3-connected bipartite planar graphs, J. Combin. Theory, B 38 (1985), 279-297.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
Title improved, a(17) corrected and a(20)-a(24) from Sean A. Irvine, Oct 09 2017
STATUS
approved