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A294200 Primes p such that 2^p - 2 is a practical number.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 11
6 13
7 17
8 19
9 29
10 31
11 37
12 41
13 43
14 53
15 61
16 67
17 71
18 73
19 79
20 89
21 97
22 101
23 103
24 109
25 113
26 127
27 131
28 137
29 139
30 151
31 157
32 163
33 181
34 191
35 193
36 197
37 199
38 211
39 223
40 229
41 233
42 241
43 251
44 257
45 271
46 277
47 281
48 283
49 307
50 311
51 313
52 331
53 337
54 349
55 353

List of values

[2, 3, 5, 7, 11, 13, 17, 19, 29, 31, 37, 41, 43, 53, 61, 67, 71, 73, 79, 89, 97, 101, 103, 109, 113, 127, 131, 137, 139, 151, 157, 163, 181, 191, 193, 197, 199, 211, 223, 229, 233, 241, 251, 257, 271, 277, 281, 283, 307, 311, 313, 331, 337, 349, 353]