a(n) = Sum_{k=1..n} n^(floor(n/k) - 1).
A345030
a(n) = Sum_{k=1..n} n^(floor(n/k) - 1).
Terms
- a(0) =1a(1) =3a(2) =11a(3) =70a(4) =633a(5) =7821a(6) =117709a(7) =2097684a(8) =43047545a(9) =1000010125a(10) =25937439391a(11) =743008621422
External references
- oeis: A345030