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A019320 formatted as a simple table:

n a(n)
0 2
1 1
2 3
3 7
4 5
5 31
6 3
7 127
8 17
9 73
10 11
11 2047
12 13
13 8191
14 43
15 151
16 257
17 131071
18 57
19 524287
20 205
21 2359
22 683
23 8388607
24 241
25 1082401
26 2731
27 262657
28 3277
29 536870911
30 331
31 2147483647
32 65537
33 599479
34 43691
35 8727391

[2,1,3,7,5,31,3,127,17,73,11,2047,13,8191,43,151,
 257,131071,57,524287,205,2359,683,8388607,241,
 1082401,2731,262657,3277,536870911,331,2147483647,
 65537,599479,43691,8727391]

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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