cp's OEIS Frontend

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.

A342544 a(n) = Sum_{k=1..n} phi(gcd(k, n))^(gcd(k, n) - 1).

Table of values

n a(n)
1 1
2 2
3 6
4 11
5 260
6 40
7 46662
8 16398
9 1679630
10 262408
11 10000000010
12 4194366
13 8916100448268
14 13060740684
15 4398046511640
16 35184372105244
17 18446744073709551632
18 16926661124436
19 39346408075296537575442
20 144115188076118572
21 3833759992447475215524
22 1000000000010000000020

List of values

[1, 2, 6, 11, 260, 40, 46662, 16398, 1679630, 262408, 10000000010, 4194366, 8916100448268, 13060740684, 4398046511640, 35184372105244, 18446744073709551632, 16926661124436, 39346408075296537575442, 144115188076118572, 3833759992447475215524, 1000000000010000000020]

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

Content is available under The OEIS End-User License Agreement.