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A079176 Number of non-anti-associative closed binary operations on a set of order n. 10
1, 14, 19631, 4294545736 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A079176(n)+A079179(n)=A002489(n).

Each a(n) is equal to the sum of the products of each element in row n of A079178 and the corresponding element of A079210.

LINKS

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

C. van den Bosch, Closed binary operations on small sets

Index entries for sequences related to groupoids

CROSSREFS

Cf. A079177, A079178, A079179.

Sequence in context: A104376 A053870 A283840 * A013754 A073940 A164322

Adjacent sequences:  A079173 A079174 A079175 * A079177 A079178 A079179

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified June 18 18:52 EDT 2019. Contains 324215 sequences. (Running on oeis4.)