Number of connected Eulerian graphs with n unlabeled nodes.

A003049

Number of connected Eulerian graphs with n unlabeled nodes.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =4a(5) =8a(6) =37a(7) =184a(8) =1782a(9) =31026a(10) =1148626a(11) =86539128a(12) =12798435868

External references