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.

A322103 Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = Sum_{d|n} sigma_k(d).

Table of values

n a(n)
1 1
2 1
3 3
4 1
5 4
6 3
7 1
8 6
9 5
10 6
11 1
12 10
13 11
14 11
15 3
16 1
17 18
18 29
19 27
20 7
21 9
22 1
23 34
24 83
25 83
26 27
27 20
28 3
29 1
30 66
31 245
32 291
33 127
34 66
35 9
36 10
37 1
38 130
39 731
40 1091
41 627
42 290
43 51
44 26
45 6
46 1
47 258
48 2189
49 4227
50 3127
51 1494
52 345
53 112
54 18
55 9
56 1
57 514
58 6563
59 16643
60 15627
61 8330
62 2403
63 668
64 102
65 28
66 3

List of values

[1, 1, 3, 1, 4, 3, 1, 6, 5, 6, 1, 10, 11, 11, 3, 1, 18, 29, 27, 7, 9, 1, 34, 83, 83, 27, 20, 3, 1, 66, 245, 291, 127, 66, 9, 10, 1, 130, 731, 1091, 627, 290, 51, 26, 6, 1, 258, 2189, 4227, 3127, 1494, 345, 112, 18, 9, 1, 514, 6563, 16643, 15627, 8330, 2403, 668, 102, 28, 3]