A079176 Number of non-anti-associative closed binary operations on a set of order n.

1, 14, 19631, 4294545736

Offset: 1

Author

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

Keywords

• nonn

Comments

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

• C. van den Bosch, Closed binary operations on small sets
• Index entries for sequences related to groupoids

Crossrefs

Cf. A079177, A079178, A079179.

Formula

a(n) = A002489(n) - A079179(n).