Solutions k of the equation s(k) = s(k-1) + s(k-2) where s(k) = isigma(k) - k is the sum of proper infinitary divisors of k (A126168).

A332976

Solutions k of the equation s(k) = s(k-1) + s(k-2) where s(k) = isigma(k) - k is the sum of proper infinitary divisors of k (A126168).

Terms

    a(0) =3a(1) =8a(2) =10a(3) =21a(4) =3237a(5) =7377a(6) =146139a(7) =584835a(8) =9988999095a(9) =25997557299

External references