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.

A066292 Numbers n such that n divides sigma_(2^k)(n), the sum of the 2^k powers of the divisors of n, for all k>1.

Table of values

n a(n)
1 1
2 84
3 156
4 364
5 1092
6 435708
7 986076
8 1118480
9 1441188
10 1674036
11 2446668
12 2597868
13 3108924
14 3875508
15 4150692
16 5537196
17 6066396
18 6686316
19 13729212
20 14639436
21 18735444
22 23307732
23 27092052
24 31806684
25 58266468
26 69728724

List of values

[1, 84, 156, 364, 1092, 435708, 986076, 1118480, 1441188, 1674036, 2446668, 2597868, 3108924, 3875508, 4150692, 5537196, 6066396, 6686316, 13729212, 14639436, 18735444, 23307732, 27092052, 31806684, 58266468, 69728724]