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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.

A346623 a(n) = Sum_{ x <= n : x odd and omega(x) = 2 } x.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 0
12 0
13 0
14 0
15 15
16 15
17 15
18 15
19 15
20 15
21 36
22 36
23 36
24 36
25 36
26 36
27 36
28 36
29 36
30 36
31 36
32 36
33 69
34 69
35 104
36 104
37 104
38 104
39 143
40 143
41 143
42 143
43 143
44 143
45 188
46 188
47 188
48 188
49 188
50 188
51 239
52 239
53 239
54 239
55 294
56 294
57 351
58 351
59 351
60 351
61 351
62 351
63 414
64 414
65 479
66 479
67 479
68 479

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 15, 15, 15, 15, 15, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 69, 69, 104, 104, 104, 104, 143, 143, 143, 143, 143, 143, 188, 188, 188, 188, 188, 188, 239, 239, 239, 239, 294, 294, 351, 351, 351, 351, 351, 351, 414, 414, 479, 479, 479, 479]

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

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