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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.

A276357 Primes of the form (p*2^x-1)/3, where p is also prime and x is a positive integer.

Table of values

n a(n)
1 3
2 5
3 7
4 11
5 13
6 17
7 19
8 29
9 31
10 37
11 41
12 47
13 53
14 59
15 61
16 67
17 71
18 89
19 97
20 101
21 109
22 127
23 131
24 137
25 149
26 151
27 157
28 167
29 179
30 181
31 197
32 211
33 229
34 239
35 241
36 257
37 269
38 277
39 281
40 307
41 311
42 347
43 349
44 379
45 389
46 397
47 409
48 421
49 431
50 439
51 449
52 461
53 467
54 479
55 509
56 547
57 571
58 577
59 587

List of values

[3, 5, 7, 11, 13, 17, 19, 29, 31, 37, 41, 47, 53, 59, 61, 67, 71, 89, 97, 101, 109, 127, 131, 137, 149, 151, 157, 167, 179, 181, 197, 211, 229, 239, 241, 257, 269, 277, 281, 307, 311, 347, 349, 379, 389, 397, 409, 421, 431, 439, 449, 461, 467, 479, 509, 547, 571, 577, 587]

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

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