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A098329 as a simple table

n a(n)
0 1
1 1
2 17
3 49
4 481
5 2081
6 16241
7 85457
8 600769
9 3489601
10 23391697
11 143000177
12 938797729
13 5897385313
14 38397492017
15 244866166289
16 1590355308929
17 10231490804353
18 66456634775441
19 429898281869489
20 2795449543782241
21 18150017431150241
22 118194927388259057
23 769438418283309649

[1,1,17,49,481,2081,16241,85457,600769,3489601,
 23391697,143000177,938797729,5897385313,
 38397492017,244866166289,1590355308929,
 10231490804353,66456634775441,429898281869489,
 2795449543782241,18150017431150241,
 118194927388259057,769438418283309649]

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Last modified January 22 07:30 EST 2020. Contains 331139 sequences. (Running on oeis4.)