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Search: id:A079243
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| A079243 |
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Number of isomorphism classes of associative non-commutative non-anti-associative anti-commutative closed binary operations on a set of order n. |
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+0
9
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OFFSET
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1,2
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COMMENT
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A079231(n)+A079233(n)+A079235(n)+A079237(n)+A079196(n)+A079241(n)+A079243(n)+A079245(n)+A063524(n)=A002489(n)
Each a(n) is equal to the sum of the elements in row n of A079208.
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LINKS
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Index entries for sequences related to semigroups
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CROSSREFS
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Cf. A079208, A079242, A079231, A079233, A079235, A079237, A079196, A079241, A079245, A063524.
Sequence in context: A125838 A066736 A057330 this_sequence A073438 A160115 A139365
Adjacent sequences: A079240 A079241 A079242 this_sequence A079244 A079245 A079246
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KEYWORD
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nonn,bref,more
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AUTHOR
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Christian van den Bosch (cjb(AT)cjb.ie), Jan 03 2003
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