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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.

A308671 a(n) = Sum_{d|n} d^(d^2).

Table of values

n a(n)
1 1
2 17
3 19684
4 4294967313
5 298023223876953126
6 10314424798490535546171968756
7 256923577521058878088611477224235621321608
8 6277101735386680763835789423207666416102355444468329480209

List of values

[1, 17, 19684, 4294967313, 298023223876953126, 10314424798490535546171968756, 256923577521058878088611477224235621321608, 6277101735386680763835789423207666416102355444468329480209]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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