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A361369
Number of weakly 2-connected simple planar digraphs with n unlabeled nodes.
0
7, 129, 6865, 774052
OFFSET
3,1
REFERENCES
M. Kirchweger, M. Scheucher, and S. Szeider, SAT-Based Generation of Planar Graphs, in preparation.
CROSSREFS
Directed variant of A021103.
Sequence in context: A333561 A187237 A095885 * A361367 A332050 A134056
KEYWORD
nonn,more
AUTHOR
Manfred Scheucher, Mar 09 2023
STATUS
approved