The number of commutative semigroups of order N.
Semigroup forum, Tome 50 (1995) no. 3, pp. 317-326

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Zbl
Mots-clés : explicit upper bound, number of commutative semigroups, finite commutative semigroups, subdirect products, nilsemigroups, elementary semigroups, number of idempotents, group of units
P.A. Grillet. The number of commutative semigroups of order N.. Semigroup forum, Tome 50 (1995) no. 3, pp. 317-326. http://geodesic.mathdoc.fr/item/SF_1995__50_3_135390/
@article{SF_1995__50_3_135390,
     author = {P.A. Grillet},
     title = {The number of commutative semigroups of order {N.}},
     journal = {Semigroup forum},
     pages = {317--326},
     year = {1995},
     volume = {50},
     number = {3},
     zbl = {0831.20079},
     url = {http://geodesic.mathdoc.fr/item/SF_1995__50_3_135390/}
}
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