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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.

A379915 a(n) is the deficiency of the odd squarefree semiprime A046388(n), divided by 2.

Table of values

n a(n)
1 3
2 5
3 9
4 11
5 11
6 15
7 19
8 17
9 23
10 21
11 29
12 31
13 27
14 35
15 29
16 35
17 35
18 43
19 47
20 39
21 41
22 53
23 45
24 59
25 55
26 59
27 51
28 65
29 57
30 59
31 71
32 79
33 65
34 83
35 79
36 89
37 69
38 83
39 89
40 71
41 95
42 91
43 77
44 107
45 81
46 109
47 107
48 103
49 87
50 119
51 95
52 115
53 131
54 125
55 99
56 119
57 101
58 139
59 105
60 143
61 107
62 137
63 131

List of values

[3, 5, 9, 11, 11, 15, 19, 17, 23, 21, 29, 31, 27, 35, 29, 35, 35, 43, 47, 39, 41, 53, 45, 59, 55, 59, 51, 65, 57, 59, 71, 79, 65, 83, 79, 89, 69, 83, 89, 71, 95, 91, 77, 107, 81, 109, 107, 103, 87, 119, 95, 115, 131, 125, 99, 119, 101, 139, 105, 143, 107, 137, 131]

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

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