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!)
A101460 Number of connected antisymmetric relations on n unlabeled nodes. 2
1, 2, 4, 32, 467, 15726, 1283648, 266995482, 145658273814, 212067643326874, 834200554714504905, 8952922576975709358534, 264287923205519914989471726, 21606715274151098406493353524694, 4921011141817073607674347572008576367 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
Inverse Euler transform of A083670. - Andrew Howroyd, Oct 24 2019
CROSSREFS
Sequence in context: A009110 A225170 A134958 * A304862 A118992 A012509
KEYWORD
nonn
AUTHOR
Vladeta Jovovic, Jan 20 2005
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 July 20 23:17 EDT 2024. Contains 374461 sequences. (Running on oeis4.)