A157255 a(n) = sigma_(n^n)(n).
1, 17, 7625597484988
Offset: 1
Links
- Amiram Eldar, Table of n, a(n) for n = 1..4
Programs
-
Mathematica
Table[DivisorSigma[n^n,n],{n,1,5}] -
PARI
a(n) = sigma(n, n^n); \\ Amiram Eldar, Mar 01 2024
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
Table[DivisorSigma[n^n,n],{n,1,5}]
a(n) = sigma(n, n^n); \\ Amiram Eldar, Mar 01 2024