1,4
Table of n, a(n) for n=1..10.
Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs
T. Hoppe and A. Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644, 2014
Cf. A003216 (Hamiltonian graphs), A241814 (distance-regular graphs).
Sequence in context: A125296 A294097 A233520 * A232245 A121895 A139555
Adjacent sequences: A243268 A243269 A243270 * A243272 A243273 A243274
nonn,more
Travis Hoppe and Anna Petrone, Jun 02 2014
approved