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A058145
Number of self-converse monoids of order n with 2 idempotents.
1
1, 3, 9, 28, 131, 1081
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OFFSET
2,2
LINKS
Table of n, a(n) for n=2..7.
Index entries for sequences related to monoids
CROSSREFS
Column 2 of
A058144
.
Sequence in context:
A121656
A148937
A047137
*
A218915
A258064
A161590
Adjacent sequences:
A058142
A058143
A058144
*
A058146
A058147
A058148
KEYWORD
nonn
,
more
AUTHOR
Christian G. Bower
, Nov 14 2000
STATUS
approved
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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)