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A161818 as a simple table

n a(n)
2 3
3 7
4 5
5 31
6 9
7 127
8 17
9 73
10 33
11 2047
12 65
13 8191
14 129
15 1057
16 257
17 131071
18 513
19 524287
20 1025
21 16513
22 2049
23 8388607
24 4097
25 1082401
26 8193
27 262657
28 16385
29 536870911
30 32769
31 2147483647
32 65537
33 4196353
34 131073
35 270549121
36 262145
37 137438953471
38 524289

[3,7,5,31,9,127,17,73,33,2047,65,8191,129,1057,
 257,131071,513,524287,1025,16513,2049,8388607,
 4097,1082401,8193,262657,16385,536870911,32769,
 2147483647,65537,4196353,131073,270549121,262145,
 137438953471,524289]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)