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A365548
Number of unigraphic graphs on n nodes that are connected.
2
1, 1, 2, 6, 16, 42, 96, 234, 546, 1292
OFFSET
1,3
COMMENTS
a(n) <= A309757(n) since this sequence excludes connected graphs that share a degree sequence with one or more disconnected graphs.
LINKS
Eric Weisstein's World of Mathematics, Unigraphic Graph
CROSSREFS
Cf. A122423 (not-necessarily connected unigraphs).
Cf. A309757 (connected graphs that have distinct degree sequences among all connected graphs).
Sequence in context: A158920 A263592 A178438 * A143123 A102699 A266124
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Sep 08 2023
STATUS
approved