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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.

A227011 Integers m such that phi(sigma(k))/sigma(phi(k)) > phi(sigma(m))/sigma(phi(m)) for all k

Table of values

n a(n)
1 1
2 3
3 5
4 11
5 13
6 17
7 29
8 41
9 181
10 209
11 377
12 779
13 3239
14 4469
15 5249
16 15539
17 43259
18 58589
19 119279
20 169679
21 174719
22 461369
23 692687
24 955499
25 1258949
26 1859129
27 1917299
28 3925463
29 7991693
30 8986469
31 13244069
32 16732169
33 30629363
34 44137523
35 48466987
36 64018433
37 68787773

List of values

[1, 3, 5, 11, 13, 17, 29, 41, 181, 209, 377, 779, 3239, 4469, 5249, 15539, 43259, 58589, 119279, 169679, 174719, 461369, 692687, 955499, 1258949, 1859129, 1917299, 3925463, 7991693, 8986469, 13244069, 16732169, 30629363, 44137523, 48466987, 64018433, 68787773]

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

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