login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A249696 Number of distinct permanental polynomials among all simple undirected graphs on n nodes. 0
1, 1, 2, 4, 11, 34, 153, 1035, 12247, 274153, 11999059, 1018915198 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..11.

Shunyi Liu, Jinjun Ren, Enumeration of copermanental graphs, arXiv:1411.0184 [math.CO], (1-November-2014)

CROSSREFS

Cf. A082104 (distinct characteristic polynomials).

Sequence in context: A238425 A071115 A217043 * A156809 A215620 A076317

Adjacent sequences:  A249693 A249694 A249695 * A249697 A249698 A249699

KEYWORD

nonn,hard,more

AUTHOR

Joerg Arndt, Nov 04 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 April 18 07:54 EDT 2021. Contains 343084 sequences. (Running on oeis4.)