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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A058155 Number of labeled commutative monoids of order n. 3
1, 4, 27, 376, 7430, 233340, 10013094 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

Eric Postpischil, Posting to sci.math newsgroup, May 21 1990

Index entries for sequences related to monoids

CROSSREFS

a(n)=A058156(n)*n.

Sequence in context: A221411 A203202 A239726 * A104169 A271615 A271616

Adjacent sequences:  A058152 A058153 A058154 * A058156 A058157 A058158

KEYWORD

nonn,more

AUTHOR

Christian G. Bower, Nov 14 2000. Corrected Dec 05 2003.

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified March 29 21:48 EDT 2017. Contains 284288 sequences.