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A058146
Number of self-converse monoids of order n with 3 idempotents.
1
1, 6, 31, 160, 947
OFFSET
3,2
CROSSREFS
Column 3 of A058144.
Sequence in context: A277669 A047665 A003128 * A015449 A336945 A162475
KEYWORD
nonn,more
AUTHOR
Christian G. Bower, Nov 14 2000
STATUS
approved