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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.

A342423 a(n) = Sum_{k=1..n} gcd(k,n)^gcd(k,n).

Table of values

n a(n)
1 1
2 5
3 29
4 262
5 3129
6 46693
7 823549
8 16777484
9 387420549
10 10000003145
11 285311670621
12 8916100495490
13 302875106592265
14 11112006826381589
15 437893890380865741
16 18446744073726329368
17 827240261886336764193
18 39346408075296925089309

List of values

[1, 5, 29, 262, 3129, 46693, 823549, 16777484, 387420549, 10000003145, 285311670621, 8916100495490, 302875106592265, 11112006826381589, 437893890380865741, 18446744073726329368, 827240261886336764193, 39346408075296925089309]

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

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