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A079241 Number of isomorphism classes of associative non-commutative non-anti-associative non-anti-commutative closed binary operations on a set of order n. 9
0, 0, 10, 127 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

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 A079207.

LINKS

Table of n, a(n) for n=1..4.

Index entries for sequences related to semigroups

CROSSREFS

Cf. A079207, A079240, A079231, A079233, A079235, A079237, A079196, A079243, A079245, A063524.

Sequence in context: A101599 A002458 A192600 * A270965 A245923 A218474

Adjacent sequences:  A079238 A079239 A079240 * A079242 A079243 A079244

KEYWORD

nonn,more

AUTHOR

Christian van den Bosch (cjb(AT)cjb.ie), Jan 03 2003

STATUS

approved

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Last modified February 19 08:50 EST 2018. Contains 299330 sequences. (Running on oeis4.)