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.

A351602 a(n) = n^4 * Sum_{d^2|n} 1 / d^4.

Table of values

n a(n)
1 1
2 16
3 81
4 272
5 625
6 1296
7 2401
8 4352
9 6642
10 10000
11 14641
12 22032
13 28561
14 38416
15 50625
16 69888
17 83521
18 106272
19 130321
20 170000
21 194481
22 234256
23 279841
24 352512
25 391250
26 456976
27 538002
28 653072
29 707281
30 810000
31 923521
32 1118208
33 1185921
34 1336336
35 1500625
36 1806624
37 1874161
38 2085136

List of values

[1, 16, 81, 272, 625, 1296, 2401, 4352, 6642, 10000, 14641, 22032, 28561, 38416, 50625, 69888, 83521, 106272, 130321, 170000, 194481, 234256, 279841, 352512, 391250, 456976, 538002, 653072, 707281, 810000, 923521, 1118208, 1185921, 1336336, 1500625, 1806624, 1874161, 2085136]