a(n) = Sum_{d|n} d^(d + n/d - 1).

A359700

a(n) = Sum_{d|n} d^(d + n/d - 1).

Terms

    a(0) =1a(1) =5a(2) =28a(3) =265a(4) =3126a(5) =46754a(6) =823544a(7) =16778273a(8) =387420733a(9) =10000015690a(10) =285311670612

External references