Number of connected 3-regular multigraphs on 2n unlabeled nodes rooted at an oriented edge (or loop), loops allowed.
A361446
Number of connected 3-regular multigraphs on 2n unlabeled nodes rooted at an oriented edge (or loop), loops allowed.
Terms
- a(0) =1a(1) =3a(2) =16a(3) =99a(4) =717a(5) =5964a(6) =56701a(7) =611750a(8) =7432491a(9) =100838222a(10) =1514749135a(11) =24989362186a(12) =449429188211
External references
- oeis: A361446