Number of asymmetric semigroups of order n, considered to be equivalent when they are isomorphic or anti-isomorphic (by reversal of the operator).
A058107
Number of asymmetric semigroups of order n, considered to be equivalent when they are isomorphic or anti-isomorphic (by reversal of the operator).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =12a(4) =78a(5) =746a(6) =10965a(7) =746277
External references
- oeis: A058107