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A079452 Number of unlabeled and connected graphs on n vertices which are chordal and P5-free. 0
1, 1, 2, 5, 14, 49, 188, 838, 4182, 23706, 153622, 1167627, 10779405, 126598717, 1980053453 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Also characterized by being (C4, C5, P5)-free.

LINKS

Table of n, a(n) for n=1..15.

F. Hüffner, tinygraph, software for generating integer sequences based on graph properties, version 6e0a59d.

CROSSREFS

Sequence in context: A124381 A131236 A119499 * A081920 A224978 A006390

Adjacent sequences:  A079449 A079450 A079451 * A079453 A079454 A079455

KEYWORD

more,nonn

AUTHOR

Jim Nastos, Jan 13 2003

EXTENSIONS

Corrected by Jim Nastos, Jan 20 2003

a(10)-a(15) added using tinygraph by Falk Hüffner, Jan 15 2016

STATUS

approved

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Last modified June 25 04:09 EDT 2021. Contains 345452 sequences. (Running on oeis4.)