Let sigma_m (n) be result of applying sum-of-divisors function m times to n; call n (m,k)-perfect if sigma_m (n) = k*n; sequence gives the (2,14)-perfect numbers.

A019291

Let sigma_m (n) be result of applying sum-of-divisors function m times to n; call n (m,k)-perfect if sigma_m (n) = k*n; sequence gives the (2,14)-perfect numbers.

Terms

    a(0) =217728a(1) =1278720a(2) =2983680a(3) =5621760a(4) =14008320a(5) =298721280a(6) =955367424a(7) =1874780160a(8) =4874428416

External references