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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.

A350996 a(n) = Sum_{k=1..n} k * rad(k).

Table of values

n a(n)
1 1
2 5
3 14
4 22
5 47
6 83
7 132
8 148
9 175
10 275
11 396
12 468
13 637
14 833
15 1058
16 1090
17 1379
18 1487
19 1848
20 2048
21 2489
22 2973
23 3502
24 3646
25 3771
26 4447
27 4528
28 4920
29 5761
30 6661
31 7622
32 7686
33 8775
34 9931
35 11156
36 11372
37 12741
38 14185
39 15706
40 16106
41 17787
42 19551
43 21400
44 22368
45 23043
46 25159

List of values

[1, 5, 14, 22, 47, 83, 132, 148, 175, 275, 396, 468, 637, 833, 1058, 1090, 1379, 1487, 1848, 2048, 2489, 2973, 3502, 3646, 3771, 4447, 4528, 4920, 5761, 6661, 7622, 7686, 8775, 9931, 11156, 11372, 12741, 14185, 15706, 16106, 17787, 19551, 21400, 22368, 23043, 25159]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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