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.

A068021 Z(S_m; sigma[1](n), sigma[2](n),..., sigma[m](n)) where Z(S_m; x_1,x_2,...,x_m) is the cycle index of the symmetric group S_m and sigma[k](n) is the sum of k-th powers of divisors of n; m=4.

Table of values

n a(n)
1 1
2 31
3 121
4 651
5 781
6 4333
7 2801
8 11811
9 11011
10 26481
11 16105
12 96957
13 30941
14 92613
15 100771
16 200787
17 88741
18 412087
19 137561
20 579201
21 354923
22 520221
23 292561
24 1812477
25 508431
26 993153
27 925771
28 2003477
29 732541
30 3996003
31 954305
32 3309747
33 2006851

List of values

[1, 31, 121, 651, 781, 4333, 2801, 11811, 11011, 26481, 16105, 96957, 30941, 92613, 100771, 200787, 88741, 412087, 137561, 579201, 354923, 520221, 292561, 1812477, 508431, 993153, 925771, 2003477, 732541, 3996003, 954305, 3309747, 2006851]