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A195689 as a simple table

n a(n)
1 5
2 17
3 53
4 3545
5 8369
6 823633
7 499025
8 669937733
9 722651597
10 35034942905
11 173113684537
12 1860490554949
13 21906189996125
14 2320160748906089
15 1347255903779016125
16 49174444344033218405
17 436006592777392918253129
18 31471103940926430492910889

[5,17,53,3545,8369,823633,499025,669937733,
 722651597,35034942905,173113684537,1860490554949,
 21906189996125,2320160748906089,
 1347255903779016125,49174444344033218405,
 436006592777392918253129,
 31471103940926430492910889]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)