Digraph Topology
المؤلف:
Sloane, N. J. A
المصدر:
Sequence A001930/M2817 in "The On-Line Encyclopedia of Integer Sequences.
الجزء والصفحة:
...
9-3-2022
2377
Digraph Topology
An unlabeled transitive digraph with 
nodes is called a "topology." The numbers of distinct topologies on 
, 2, ... nodes are 1, 3, 9, 33, 139, 718, 4535, ... (OEIS A001930). No larger values are known.
REFERENCES
Sloane, N. J. A. Sequence A001930/M2817 in "The On-Line Encyclopedia of Integer Sequences.
"Sloane, N. J. A. and Plouffe, S. The Encyclopedia of Integer Sequences. San Diego, CA: Academic Press, 1995.
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