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.

A321598 a(n) = Sum_{d|n} d*binomial(d+2,3).

Table of values

n a(n)
1 1
2 9
3 31
4 89
5 176
6 375
7 589
8 1049
9 1516
10 2384
11 3147
12 4823
13 5916
14 8437
15 10406
16 14105
17 16474
18 22380
19 25271
20 33264
21 37810
22 47683
23 52901
24 68183
25 73301
26 91100
27 100174
28 122197
29 130356
30 161750
31 169137
32 205593
33 219162
34 259242
35 272714
36 330524
37 338144
38 400719
39 421686
40 493424

List of values

[1, 9, 31, 89, 176, 375, 589, 1049, 1516, 2384, 3147, 4823, 5916, 8437, 10406, 14105, 16474, 22380, 25271, 33264, 37810, 47683, 52901, 68183, 73301, 91100, 100174, 122197, 130356, 161750, 169137, 205593, 219162, 259242, 272714, 330524, 338144, 400719, 421686, 493424]