login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A243250 Number of unlabeled, connected graphs on n vertices with at least one subgraph isomorphic to a diamond graph. 0
0, 0, 0, 2, 10, 73, 688, 10150, 253396, 11629559 (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 [math.CO], 2014

Eric Weisstein's World of Mathematics, Diamond Graph

FORMULA

a(n) = A001349(n) - A242790(n).

CROSSREFS

Sequence in context: A231039 A224799 A275550 * A088189 A228609 A001395

Adjacent sequences:  A243247 A243248 A243249 * A243251 A243252 A243253

KEYWORD

nonn,more

AUTHOR

Travis Hoppe and Anna Petrone, Jun 01 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 20 07:27 EDT 2019. Contains 321345 sequences. (Running on oeis4.)