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A019322 as a simple table

n a(n)
0 4
1 3
2 5
3 21
4 17
5 341
6 13
7 5461
8 257
9 4161
10 205
11 1398101
12 241
13 22369621
14 3277
15 49981
16 65537
17 5726623061
18 4033
19 91625968981
20 61681
21 12783421
22 838861
23 23456248059221
24 65281
25 1100586419201
26 13421773
27 68719738881

[4,3,5,21,17,341,13,5461,257,4161,205,1398101,241,
 22369621,3277,49981,65537,5726623061,4033,
 91625968981,61681,12783421,838861,23456248059221,
 65281,1100586419201,13421773,68719738881]

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)