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A321671 as a simple table

n a(n)
1 3
2 5
3 7
4 13
5 23
6 29
7 31
8 37
9 47
10 61
11 101
12 127
13 229
14 269
15 431
16 503
17 509
18 997
19 1021
20 1319
21 2039
22 3853
23 4093
24 7949
25 8111
26 8191
27 14197
28 16141
29 16381
30 32687
31 45853
32 65293
33 130343
34 130829
35 131063
36 131071
37 347141
38 502829
39 524261
40 524287
41 1028893
42 1046389
43 1048549

[3,5,7,13,23,29,31,37,47,61,101,127,229,269,431,
 503,509,997,1021,1319,2039,3853,4093,7949,8111,
 8191,14197,16141,16381,32687,45853,65293,130343,
 130829,131063,131071,347141,502829,524261,524287,
 1028893,1046389,1048549]

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Last modified July 24 03:30 EDT 2019. Contains 325290 sequences. (Running on oeis4.)