login
A086991
Numbers of claw-free simple graphs (not necessarily connected) on n nodes.
2
1, 2, 4, 10, 26, 85, 302, 1285, 6170, 34294, 227417, 2001617, 26098641, 520051389, 15041205304
OFFSET
1,2
LINKS
F. Hüffner, tinygraph, software for generating integer sequences based on graph properties, version 8489dde.
Avraham Itzhakov and Michael Codish, Breaking Symmetries in Graph Search with Canonizing Sets, arXiv:1511.08205 [cs.AI], 2015
Eric Weisstein's World of Mathematics, Claw-Free Graph
CROSSREFS
Cf. A022562 (inv. Euler transf.).
Sequence in context: A148103 A148104 A179981 * A272603 A272602 A113066
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Jul 28 2003
EXTENSIONS
a(10) from Michael Codish, Dec 01 2015
a(11)-a(15) added using tinygraph by Falk Hüffner, Jan 12 2016
STATUS
approved