Number of binary operations on an n-set that satisfy (ab)c = (ac)b for all a,b,c.

A322654

Number of binary operations on an n-set that satisfy (ab)c = (ac)b for all a,b,c.

Terms

    a(0) =1a(1) =1a(2) =10a(3) =573a(4) =136528a(5) =115511945a(6) =365045461056

External references