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.

A347415 a(n) = Sum_{k=1..n} floor((n/k)^k).

Table of values

n a(n)
1 1
2 3
3 6
4 11
5 18
6 31
7 48
8 76
9 118
10 184
11 279
12 426
13 641
14 966
15 1448
16 2163
17 3228
18 4805
19 7137
20 10586
21 15681
22 23198
23 34278
24 50606
25 74632
26 109987
27 161954
28 238312
29 350432
30 514999
31 756407
32 1110391
33 1629219
34 2389346
35 3502578
36 5132354
37 7517523
38 11007078
39 16110784
40 23573102
41 34480937
42 50420909

List of values

[1, 3, 6, 11, 18, 31, 48, 76, 118, 184, 279, 426, 641, 966, 1448, 2163, 3228, 4805, 7137, 10586, 15681, 23198, 34278, 50606, 74632, 109987, 161954, 238312, 350432, 514999, 756407, 1110391, 1629219, 2389346, 3502578, 5132354, 7517523, 11007078, 16110784, 23573102, 34480937, 50420909]