a(n) is the smallest integer k for which sigma_n(k) <= sigma_n(k-1) where sigma_n(k) = sum of the n-th powers of the divisors of k.

A098475

a(n) is the smallest integer k for which 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) =3a(1) =5a(2) =7a(3) =25a(4) =61a(5) =145a(6) =361a(7) =853a(8) =1969a(9) =4489a(10) =10069a(11) =22273a(12) =48781a(13) =105949a(14) =228589a(15) =490405a(16) =1046977a(17) =2225965a(18) =4715401a(19) =9956977a(20) =20965213a(21) =44031361a(22) =92262349a(23) =192920785a(24) =402629257a(25) =838827577a(26) =1744784389a(27) =3623814865a(28) =7516104565

External references