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A058155
Number of labeled commutative monoids of order n.
4
1, 4, 27, 376, 7430, 233340, 10013094, 618332080, 70437029472, 39048511536720
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..10.
Eric Postpischil,
Posting to sci.math newsgroup, May 21 1990
Index entries for sequences related to monoids
FORMULA
a(n) =
A058156
(n)*n.
CROSSREFS
Cf.
A058156
.
Row sums of
A058159
.
Sequence in context:
A203202
A320961
A239726
*
A334527
A104169
A359904
Adjacent sequences:
A058152
A058153
A058154
*
A058156
A058157
A058158
KEYWORD
nonn
,
more
AUTHOR
Christian G. Bower
, Nov 14 2000, corrected Dec 05 2003
EXTENSIONS
a(8)-a(9) from
Alex Meiburg
, Oct 20 2021
a(10) from
Andrew Howroyd
, Feb 15 2022
STATUS
approved
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Last modified September 17 05:28 EDT 2024. Contains 375985 sequences. (Running on oeis4.)