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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.

A373630 a(n) is the n-th semiprime after the n-th prime.

Table of values

n a(n)
1 4
2 6
3 10
4 15
5 25
6 26
7 35
8 38
9 49
10 57
11 58
12 74
13 85
14 86
15 91
16 95
17 118
18 119
19 123
20 133
21 134
22 143
23 146
24 161
25 183
26 185
27 187
28 201
29 202
30 205
31 218
32 221
33 237
34 247
35 265
36 267
37 278
38 295
39 299
40 302
41 309
42 314
43 326
44 327
45 334
46 335
47 362
48 393
49 395
50 398
51 403
52 413
53 415
54 427
55 446
56 453
57 466
58 469
59 473
60 481
61 482
62 497
63 519

List of values

[4, 6, 10, 15, 25, 26, 35, 38, 49, 57, 58, 74, 85, 86, 91, 95, 118, 119, 123, 133, 134, 143, 146, 161, 183, 185, 187, 201, 202, 205, 218, 221, 237, 247, 265, 267, 278, 295, 299, 302, 309, 314, 326, 327, 334, 335, 362, 393, 395, 398, 403, 413, 415, 427, 446, 453, 466, 469, 473, 481, 482, 497, 519]

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

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