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A274906 as a simple table

n a(n)
1 3
2 5
3 7
4 17
5 31
6 13
7 127
8 257
9 73
10 41
11 683
12 241
13 8191
14 127
15 331
16 65537
17 131071
18 109
19 524287
20 61681
21 5419
22 2113
23 2796203
24 673
25 4051
26 8191
27 262657
28 15790321
29 3033169
30 1321
31 2147483647
32 6700417
33 599479
34 131071
35 122921
36 38737
37 616318177
38 525313
39 22366891

[3,5,7,17,31,13,127,257,73,41,683,241,8191,127,
 331,65537,131071,109,524287,61681,5419,2113,
 2796203,673,4051,8191,262657,15790321,3033169,
 1321,2147483647,6700417,599479,131071,122921,
 38737,616318177,525313,22366891]

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Last modified April 25 08:20 EDT 2024. Contains 371964 sequences. (Running on oeis4.)