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A098582 as a simple table

n a(n)
0 1
1 3
2 7
3 15
4 15
5 31
6 79
7 191
8 431
9 671
10 1167
11 2431
12 5487
13 12383
14 23119
15 41791
16 80687
17 168479
18 366607
19 736511
20 1405167
21 2696159
22 5391823
23 11257535
24 23041711
25 45524383
26 88662927
27 174932095
28 355052655
29 723720031
30 1452110159
31 2870716991

[1,3,7,15,15,31,79,191,431,671,1167,2431,5487,
 12383,23119,41791,80687,168479,366607,736511,
 1405167,2696159,5391823,11257535,23041711,
 45524383,88662927,174932095,355052655,723720031,
 1452110159,2870716991]

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Last modified February 29 05:25 EST 2020. Contains 332353 sequences. (Running on oeis4.)