A079574 -id:A079574 - cp's OEIS frontend

1, 1, 2, 5, 9, 26, 80, 340, 1690, 11432, 101142, 1228608, 20329150

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Travis Hoppe and Anna Petrone, Jun 06 2014

K_4 is the complete graph with four vertices.

Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs
T. Hoppe and A. Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644, 2014
F. Hüffner, tinygraph, software for generating integer sequences based on graph properties, version 29e68fa.

Cf. A244427 (no bull subgraphs), A079574 (K_4 free graphs).

a(11)-a(13) added using tinygraph by Falk Hüffner, Sep 23 2020

1, 1, 2, 4, 11, 35, 124, 500, 2224, 10640, 53920, 285535, 1563849, 8798306

Offset: 1

Travis Hoppe and Anna Petrone, Jun 27 2014

K_4 is the complete graph on four vertices.

Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs
T. Hoppe and A. Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644, 2014
F. Hüffner, tinygraph, software for generating integer sequences based on graph properties, version 69d4186

Cf. A048192 (chordal graphs), A079574 (K_4 free graphs).

a(11)-a(14) added using tinygraph by Falk Hüffner, Jan 15 2016

cp's OEIS Frontend