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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.

A134622 Products pq ("semiprimes") of two primes p and q >= p such that q+2 is a prime.

Table of values

n a(n)
1 6
2 9
3 10
4 15
5 22
6 25
7 33
8 34
9 51
10 55
11 58
12 77
13 82
14 85
15 87
16 118
17 119
18 121
19 123
20 142
21 145
22 177
23 187
24 202
25 203
26 205
27 213
28 214
29 221
30 274
31 287
32 289
33 295
34 298
35 303
36 319
37 321
38 355
39 358
40 377
41 382
42 394
43 411
44 413
45 447
46 451
47 454
48 478
49 493
50 497
51 505
52 533
53 535
54 537
55 538
56 551
57 562
58 573

List of values

[6, 9, 10, 15, 22, 25, 33, 34, 51, 55, 58, 77, 82, 85, 87, 118, 119, 121, 123, 142, 145, 177, 187, 202, 203, 205, 213, 214, 221, 274, 287, 289, 295, 298, 303, 319, 321, 355, 358, 377, 382, 394, 411, 413, 447, 451, 454, 478, 493, 497, 505, 533, 535, 537, 538, 551, 562, 573]

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

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