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A380127
Number of connected unlabeled graphs with n nodes and minimum vertex degree >= 4.
0
0, 0, 0, 0, 1, 4, 29, 424, 15471, 1249972, 187095836, 48211095992, 21124789189703, 15899588477573380, 20900616544566305160, 48843531771541430977365, 206305644374013971584957120, 1597725697294349735784472597650, 22957145992821363656862872542094876, 617791721556546579087246090934406095676
OFFSET
1,6
COMMENTS
First differs from A324227(n) at n = 10.
LINKS
Eric Weisstein's World of Mathematics, Connected Graph.
Eric Weisstein's World of Mathematics, Minimum Vertex Degree.
PROG
(nauty) geng $n -d4 -c -u # see nauty documentation, Georg Grasegger, Mar 20 2025
CROSSREFS
Cf. A007112 (connected graphs with degree >= 3).
Cf. A324227 (4-edge-connected graphs).
Sequence in context: A370165 A162287 A324227 * A277357 A173715 A230326
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Mar 11 2025
EXTENSIONS
a(11)-a(12) added by Georg Grasegger, Mar 20 2025
a(13) onwards from Andrew Howroyd, May 25 2025
STATUS
approved