A098343 Consider the family of multigraphs enriched by the species of binary arborescences. Sequence gives number of those multigraphs with n edges and loops.

1, 2, 15, 187, 3283, 74825, 2109272, 71217488, 2815154006, 128079232835, 6618682431711, 384397221347345

Offset

0,2

References

G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004.

Links

Table of n, a(n) for n=0..11.

G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. [Cached copy, with permission]

Crossrefs

Sequence in context: A319834 A268420 A208402 * A052819 A349292 A328121

Adjacent sequences: A098340 A098341 A098342 * A098344 A098345 A098346

Keyword

nonn

Author

N. J. A. Sloane, Oct 26 2004

Status

approved