1,2

A079192(n)+A079195(n)+A079198(n)+A023815(n)=A002489(n).

Each a(n) is equal to the sum of the products of each element in row n of A079197 and the corresponding element of A079210.

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

Index entries for sequences related to groupoids

Cf. A023815, A079192, A079196, A079197, A079198.

Sequence in context: A134796 A120830 A156938 this_sequence A120123 A140014 A106301

Adjacent sequences: A079192 A079193 A079194 this_sequence A079196 A079197 A079198

nonn

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