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A145344 as a simple table

n a(n)
1 2
2 2
3 5
4 7
5 17
6 13
7 67
8 29
9 37
10 53
11 1031
12 61
13 4099
14 193
15 149
16 127
17 65537
18 181
19 262147
20 241
21 577
22 3079
23 4194319
24 367
25 1297
26 12289
27 907
28 967
29 268435459
30 727
31 1073741827
32 853
33 9221
34 196613
35 5189
36 1277
37 68719476767
38 786433
39 36871
40 1693
41 1099511627791

[2,2,5,7,17,13,67,29,37,53,1031,61,4099,193,149,
 127,65537,181,262147,241,577,3079,4194319,367,
 1297,12289,907,967,268435459,727,1073741827,853,
 9221,196613,5189,1277,68719476767,786433,36871,
 1693,1099511627791]

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)