A049367 Number of triangle-free planar graphs with n nodes.

1, 2, 3, 7, 14, 37, 102, 367, 1532, 8091, 50775, 372417, 3045985, 26989204, 252934543

Offset: 1

Author

Brendan McKay

Keywords

• nonn
• nice
• hard
• more

Links

• F. Hüffner, tinygraph, software for generating integer sequences based on graph properties, version 9766535.

Crossrefs

Cf. A049368 (inverse Euler transform), A006785.

Extensions

a(12)-a(15) added using tinygraph by Falk Hüffner, May 09 2019