Least number k such that sigma_n(k) > sigma_n(k+1), where sigma_n(k) = sum of the n-th powers of the divisors of k.

A158661

Least number k such that sigma_n(k) > sigma_n(k+1), where sigma_n(k) = sum of the n-th powers of the divisors of k.

Terms

    a(0) =4a(1) =4a(2) =6a(3) =24a(4) =60a(5) =144a(6) =360a(7) =852a(8) =1968a(9) =4488a(10) =10068a(11) =22272a(12) =48780a(13) =105948a(14) =228588a(15) =490404a(16) =1046976a(17) =2225964a(18) =4715400a(19) =9956976a(20) =20965212a(21) =44031360a(22) =92262348a(23) =192920784a(24) =402629256a(25) =838827576a(26) =1744784388a(27) =3623814864a(28) =7516104564

External references