A022563 Number of 2-connected claw-free graphs on n nodes.

0, 0, 1, 3, 8, 32, 126, 619, 3332, 20910, 157721, 1590330, 23074092, 487448150, 14466253437, 585505737038

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• more

Links

• R. Faudree, E. Flandrin and Z. Ryjacek, Claw-free graphs - a survey, Discr. Math., 164 (1997), 87-147.
• F. Hüffner, tinygraph, software for generating integer sequences based on graph properties, version e8699da.

Crossrefs

Cf. A022562, A022564.

Extensions

a(12) corrected using tinygraph by Falk Hüffner, Jan 18 2016

a(13)-a(16) from Brendan McKay, Jun 13 2021