The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A243556 Number of simple connected graphs with n nodes that are integral and have no subgraph isomorphic to bull graph. 0
1, 1, 1, 2, 1, 3, 2, 3, 0, 14 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
LINKS
Table of n, a(n) for n=1..10.
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
CROSSREFS
Cf. A244427 (no bull subgraphs), A064731 (integral graphs).
Sequence in context: A350768 A054710 A331779 * A048233 A287730 A260452
Adjacent sequences: A243553 A243554 A243555 * A243557 A243558 A243559
KEYWORD
nonn,more
AUTHOR
Travis Hoppe and Anna Petrone, Jun 06 2014
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 19 00:35 EDT 2024. Contains 372666 sequences. (Running on oeis4.)