A243562 - OEIS

%I #16 Sep 12 2023 12:19:30

%S 1,0,1,1,2,3,8,21,79,334,2190

%N Number of simple connected graphs with n nodes that are Eulerian and have no subgraph isomorphic to diamond graph.

%H Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a>

%Y Cf. A242790 (diamond free graphs), A003049 (Eulerian graphs).

%K nonn,more

%O 1,5

%A _Travis Hoppe_ and _Anna Petrone_, Jun 06 2014

%E a(11) from _Max Alekseyev_, Sep 12 2023