1,5
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. A003049 (Eulerian graphs), A241842 (non-integral graphs).
Sequence in context: A098960 A162429 A279461 * A018952 A019028 A280769
Adjacent sequences: A243321 A243322 A243323 * A243325 A243326 A243327
nonn,more
Travis Hoppe and Anna Petrone, Jun 03 2014
approved