A360863 - OEIS

%I #7 Feb 24 2023 21:46:59

%S 0,1,3,5,13,36,99,301,980,3345,12036,45399,178420,729149

%N Number of unlabeled connected multigraphs with n edges and degree >= 3 at each node, loops allowed.

%F Inverse Euler transform of A360865.

%Y Row sums of A360862.

%Y Cf. A360864 (by circuit rank), A360865 (not necessarily connected).

%K nonn,more

%O 1,3

%A _Andrew Howroyd_, Feb 24 2023