login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A030265
Number of nonisomorphic commutative groupoids with 1 idempotent and a nontrivial symmetry.
3
0, 0, 6, 214, 83925
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,3
LINKS
Table of n, a(n) for n=1..5.
Index entries for sequences related to groupoids
CROSSREFS
A030263
-
A030264
.
Sequence in context:
A002037
A332989
A370128
*
A275567
A007221
A195802
Adjacent sequences:
A030262
A030263
A030264
*
A030266
A030267
A030268
KEYWORD
nonn
,
more
AUTHOR
Christian G. Bower
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 April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)