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.

A328058 Primes p such that 2*p-1 is a semiprime.

Table of values

n a(n)
1 5
2 11
3 13
4 17
5 29
6 43
7 47
8 61
9 67
10 71
11 73
12 89
13 101
14 103
15 107
16 109
17 127
18 151
19 181
20 191
21 197
22 223
23 227
24 241
25 251
26 269
27 277
28 283
29 317
30 349
31 359
32 373
33 397
34 409
35 421
36 433
37 457
38 461
39 467
40 487
41 521
42 541
43 569
44 571
45 631
46 643
47 647
48 659
49 673
50 701
51 709
52 719
53 733
54 739
55 751
56 757
57 769
58 821
59 857
60 859
61 881
62 883

List of values

[5, 11, 13, 17, 29, 43, 47, 61, 67, 71, 73, 89, 101, 103, 107, 109, 127, 151, 181, 191, 197, 223, 227, 241, 251, 269, 277, 283, 317, 349, 359, 373, 397, 409, 421, 433, 457, 461, 467, 487, 521, 541, 569, 571, 631, 643, 647, 659, 673, 701, 709, 719, 733, 739, 751, 757, 769, 821, 857, 859, 881, 883]

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

Content is available under The OEIS End-User License Agreement.