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.

A171257 Numbers n such that sigma(n) = 11*phi(n) (where sigma=A000203, phi=A000010).

Table of values

n a(n)
1 2580
2 16770
3 18630
4 28896
5 35970
6 61404
7 66024
8 147576
9 163944
10 215124
11 224010
12 296184
13 399126
14 408672
15 443394
16 464340
17 476010
18 574308
19 856086
20 862752
21 868428
22 931224
23 957348
24 1004910
25 1110186
26 1496610
27 1721720
28 1723290
29 1833348
30 1971288
31 2139852
32 2234790

List of values

[2580, 16770, 18630, 28896, 35970, 61404, 66024, 147576, 163944, 215124, 224010, 296184, 399126, 408672, 443394, 464340, 476010, 574308, 856086, 862752, 868428, 931224, 957348, 1004910, 1110186, 1496610, 1721720, 1723290, 1833348, 1971288, 2139852, 2234790]