A361369 Number of weakly 2-connected simple planar digraphs with n unlabeled nodes.

7, 129, 6865, 774052

Offset

3,1

References

M. Kirchweger, M. Scheucher, and S. Szeider, SAT-Based Generation of Planar Graphs, in preparation.

Links

Table of n, a(n) for n=3..6.

Crossrefs

Directed variant of A021103.

Cf. A000273, A003085, A361366-A361368

Sequence in context: A333561 A187237 A095885 * A361367 A332050 A134056

Adjacent sequences: A361366 A361367 A361368 * A361370 A361371 A361372

Keyword

nonn,more

Author

Manfred Scheucher, Mar 09 2023

Status

approved