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A058110
Semigroups of order n with 2 idempotents.
0
3, 9, 50, 309, 2806, 58583
(list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
LINKS
Table of n, a(n) for n=2..7.
Index entries for sequences related to semigroups
CROSSREFS
Column 2 of A058108.
Sequence in context: A372421 A036751 A260156 * A261542 A079836 A171951
Adjacent sequences: A058107 A058108 A058109 * A058111 A058112 A058113
KEYWORD
nonn,hard
AUTHOR
Christian G. Bower, Nov 09 2000
EXTENSIONS
Updated Feb 19 2001
STATUS
approved

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Last modified October 1 00:06 EDT 2024. Contains 376365 sequences.
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