Smallest nonunitary multiperfect number of index n; i.e., smallest k such that sigma(k) - usigma(k) = nk.

A064596

Smallest nonunitary multiperfect number of index n; i.e., smallest k such that sigma(k) - usigma(k) = nk.

Terms

    a(0) =1a(1) =24a(2) =2520a(3) =186076800

External references