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.

A106847 a(n) = Sum {k + j*m <= n} (k + j*m), with 0 < k,j,m <= n.

Table of values

n a(n)
0 0
1 0
2 2
3 11
4 31
5 71
6 131
7 229
8 357
9 537
10 767
11 1064
12 1412
13 1867
14 2385
15 3000
16 3720
17 4570
18 5506
19 6608
20 7808
21 9194
22 10734
23 12436
24 14260
25 16360
26 18622
27 21079
28 23739
29 26668
30 29758
31 33199
32 36815
33 40742
34 44924
35 49369
36 54085
37 59265
38 64661
39 70355

List of values

[0, 0, 2, 11, 31, 71, 131, 229, 357, 537, 767, 1064, 1412, 1867, 2385, 3000, 3720, 4570, 5506, 6608, 7808, 9194, 10734, 12436, 14260, 16360, 18622, 21079, 23739, 26668, 29758, 33199, 36815, 40742, 44924, 49369, 54085, 59265, 64661, 70355]