a(n) = Sum_{k=1..n} ceiling(n/k)^n.

A332624

a(n) = Sum_{k=1..n} ceiling(n/k)^n.

Terms

    a(0) =1a(1) =5a(2) =36a(3) =289a(4) =3433a(5) =47578a(6) =842499a(7) =16850338a(8) =389415029a(9) =10010878371a(10) =285679026506

External references