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!)
A256032 Number of idempotents in partial Brauer monoid PB_n. 1
1, 2, 7, 38, 241, 1922, 17359, 180854, 2092801, 26851202, 376371799 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
I. Dolinka, J. East, A. Evangelou, D. FitzGerald, N. Ham, et al., Enumeration of idempotents in diagram semigroups and algebras, arXiv preprint arXiv:1408.2021 [math.GR], 2014. See Table 2 and Theorem 32 (iii).
CROSSREFS
Cf. A256031.
Sequence in context: A036432 A275621 A094431 * A209006 A168492 A346646
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Mar 14 2015
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 March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)