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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.

A283598 Numbers k such that all three of 6*k+1, 6*(k+1)+1, and 6*(k+2)+1 are semiprimes.

Table of values

n a(n)
1 41
2 42
3 48
4 84
5 92
6 148
7 157
8 158
9 162
10 189
11 209
12 210
13 222
14 223
15 224
16 225
17 226
18 234
19 250
20 306
21 315
22 316
23 317
24 318
25 319
26 326
27 386
28 387
29 401
30 407
31 408
32 433
33 462
34 487
35 488
36 489
37 514
38 515
39 521
40 532
41 539
42 566
43 567
44 568
45 569
46 580
47 598
48 633
49 634
50 662
51 663
52 664
53 672
54 697
55 713
56 717
57 718

List of values

[41, 42, 48, 84, 92, 148, 157, 158, 162, 189, 209, 210, 222, 223, 224, 225, 226, 234, 250, 306, 315, 316, 317, 318, 319, 326, 386, 387, 401, 407, 408, 433, 462, 487, 488, 489, 514, 515, 521, 532, 539, 566, 567, 568, 569, 580, 598, 633, 634, 662, 663, 664, 672, 697, 713, 717, 718]

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

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