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Search: id:A058131
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| A058131 |
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Number of commutative monoids (commutative semigroups with identity) of order n. |
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+0
2
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OFFSET
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1,2
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REFERENCES
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S. Wolfram, A New Kind of Science. Champaign, IL: Wolfram Media, p. 952, 2002.
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LINKS
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Eric Postpischil Posting to sci.math newsgroup, May 21 1990
Eric Weisstein's World of Mathematics, Commutative Monoid
Eric Weisstein's World of Mathematics, Additive Cellular Automaton
Index entries for sequences related to monoids
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CROSSREFS
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Sequence in context: A014273 A150026 A150027 this_sequence A138911 A107377 A058132
Adjacent sequences: A058128 A058129 A058130 this_sequence A058132 A058133 A058134
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KEYWORD
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nonn,more
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AUTHOR
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Christian G. Bower (bowerc(AT)usa.net), Nov 13 2000
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