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A058138
Monoids of order n with 2 idempotents.
1
1, 3, 9, 32, 219, 5585
OFFSET
2,2
CROSSREFS
Column 2 of A058137.
Sequence in context: A009356 A341302 A297209 * A327808 A284964 A344247
KEYWORD
nonn,more
AUTHOR
Christian G. Bower, Nov 14 2000
STATUS
approved