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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.

A076344 A076341(A001358(n)), imaginary part of semiprimes mapped as defined in A076340, A076341.

Table of values

n a(n)
1 0
2 -2
3 -8
4 2
5 -2
6 0
7 -12
8 -2
9 8
10 2
11 -16
12 2
13 4
14 -2
15 -8
16 -2
17 -16
18 -12
19 8
20 -24
21 2
22 -2
23 16
24 -28
25 2
26 -20
27 2
28 20
29 -2
30 -24
31 -4
32 -36
33 -2
34 16
35 2
36 -32
37 20
38 -2
39 -8
40 -24
41 2
42 -36
43 -48
44 -28
45 -2
46 -52
47 -2
48 0
49 32
50 2
51 28
52 -2
53 -48
54 -32
55 -2
56 24
57 -64
58 2
59 -56
60 40
61 -4
62 2
63 -72
64 2
65 -20
66 44
67 -2
68 -32
69 -76
70 -2

List of values

[0, -2, -8, 2, -2, 0, -12, -2, 8, 2, -16, 2, 4, -2, -8, -2, -16, -12, 8, -24, 2, -2, 16, -28, 2, -20, 2, 20, -2, -24, -4, -36, -2, 16, 2, -32, 20, -2, -8, -24, 2, -36, -48, -28, -2, -52, -2, 0, 32, 2, 28, -2, -48, -32, -2, 24, -64, 2, -56, 40, -4, 2, -72, 2, -20, 44, -2, -32, -76, -2]

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