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.

A193065 Odd numbers N for which numerator(sigma(N)/N) is a prime.

Table of values

n a(n)
1 9
2 25
3 289
4 729
5 1521
6 1681
7 2401
8 3481
9 5041
10 7921
11 10201
12 15625
13 17161
14 27889
15 28561
16 29929
17 83521
18 85849
19 146689
20 257049
21 279841
22 458329
23 491401
24 531441
25 552049
26 579121
27 597529
28 683929
29 703921
30 707281
31 734449
32 829921
33 1190281
34 1203409
35 1352569
36 1394761
37 1423249
38 1481089
39 1885129
40 2036329
41 2211169

List of values

[9, 25, 289, 729, 1521, 1681, 2401, 3481, 5041, 7921, 10201, 15625, 17161, 27889, 28561, 29929, 83521, 85849, 146689, 257049, 279841, 458329, 491401, 531441, 552049, 579121, 597529, 683929, 703921, 707281, 734449, 829921, 1190281, 1203409, 1352569, 1394761, 1423249, 1481089, 1885129, 2036329, 2211169]