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.

A356250 Square array T(n,k), n >= 1, k >= 0, read by antidiagonals downwards, where T(n,k) = Sum_{j=1..n} (j * floor(n/j))^k.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 4
6 3
7 1
8 8
9 8
10 4
11 1
12 16
13 22
14 15
15 5
16 1
17 32
18 62
19 57
20 21
21 6
22 1
23 64
24 178
25 219
26 91
27 33
28 7
29 1
30 128
31 518
32 849
33 405
34 185
35 41
36 8
37 1
38 256
39 1522
40 3315
41 1843
42 1053
43 247
44 56
45 9
46 1
47 512
48 4502
49 13017
50 8541
51 6065
52 1523
53 402
54 69
55 10
56 1
57 1024
58 13378
59 51339
60 40171
61 35253
62 9571
63 2948
64 545
65 87
66 11

List of values

[1, 1, 2, 1, 4, 3, 1, 8, 8, 4, 1, 16, 22, 15, 5, 1, 32, 62, 57, 21, 6, 1, 64, 178, 219, 91, 33, 7, 1, 128, 518, 849, 405, 185, 41, 8, 1, 256, 1522, 3315, 1843, 1053, 247, 56, 9, 1, 512, 4502, 13017, 8541, 6065, 1523, 402, 69, 10, 1, 1024, 13378, 51339, 40171, 35253, 9571, 2948, 545, 87, 11]