

A243337


Number of simple connected graphs with n nodes that are planar and K_4 free.


0



1, 1, 2, 5, 17, 79, 478, 4123, 46666, 648758, 10275896, 177007433
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OFFSET

1,3


COMMENTS

K_4 is the complete graph on four vertices.


LINKS

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


CROSSREFS



KEYWORD

nonn,more


AUTHOR



EXTENSIONS

a(11)a(12) added using tinygraph by Falk Hüffner, May 10 2019


STATUS

approved



