a(n) = sigma(n,1) + sigma(n,2) + ... + sigma(n,n).

A236328

a(n) = sigma(n,1) + sigma(n,2) + ... + sigma(n,n).

Terms

    a(0) =1a(1) =8a(2) =42a(3) =374a(4) =3910a(5) =57210a(6) =960806a(7) =19261858a(8) =435877581a(9) =11123320196a(10) =313842837682

External references