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.

A116946 Closest semiprime to n-th semiprime S that is different from S (break ties by taking the smaller semiprime).

Table of values

n a(n)
1 6
2 4
3 10
4 9
5 15
6 14
7 22
8 21
9 26
10 25
11 34
12 33
13 34
14 39
15 38
16 49
17 51
18 49
19 57
20 58
21 57
22 65
23 62
24 65
25 77
26 74
27 85
28 86
29 85
30 86
31 93
32 94
33 93
34 94
35 111
36 115
37 118
38 119
39 118
40 122
41 121
42 122
43 133
44 134
45 133
46 142
47 141
48 142
49 146
50 145
51 158
52 159
53 158
54 159
55 169
56 166
57 178
58 177
59 185

List of values

[6, 4, 10, 9, 15, 14, 22, 21, 26, 25, 34, 33, 34, 39, 38, 49, 51, 49, 57, 58, 57, 65, 62, 65, 77, 74, 85, 86, 85, 86, 93, 94, 93, 94, 111, 115, 118, 119, 118, 122, 121, 122, 133, 134, 133, 142, 141, 142, 146, 145, 158, 159, 158, 159, 169, 166, 178, 177, 185]

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

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