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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.

A061257 Euler transform of reduced totient function psi(n), cf. A002322.

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 7
5 13
6 21
7 37
8 58
9 96
10 153
11 243
12 376
13 584
14 897
15 1353
16 2046
17 3060
18 4552
19 6714
20 9862
21 14386
22 20898
23 30198
24 43427
25 62159
26 88600
27 125804
28 177881
29 250615
30 351819
31 492203
32 686294
33 953954
34 1321902
35 1826394
36 2516364
37 3457332
38 4737576
39 6475332

List of values

[1, 1, 2, 4, 7, 13, 21, 37, 58, 96, 153, 243, 376, 584, 897, 1353, 2046, 3060, 4552, 6714, 9862, 14386, 20898, 30198, 43427, 62159, 88600, 125804, 177881, 250615, 351819, 492203, 686294, 953954, 1321902, 1826394, 2516364, 3457332, 4737576, 6475332]

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

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