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A287063 as a simple table

n a(n)
1 3
2 9
3 39
4 183
5 833
6 3629
7 15291
8 63051
9 256605
10 1036401
11 4167815
12 16720031
13 66986169
14 268173525
15 1073185011
16 4293787923
17 17177379125
18 68714234201
19 274866897279
20 1099488559527
21 4397998277073
22 17592085381629
23 70368534463019
24 281474540503643
25 1125899000873613

[3,9,39,183,833,3629,15291,63051,256605,1036401,
 4167815,16720031,66986169,268173525,1073185011,
 4293787923,17177379125,68714234201,274866897279,
 1099488559527,4397998277073,17592085381629,
 70368534463019,281474540503643,1125899000873613]

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Last modified April 18 11:12 EDT 2024. Contains 371779 sequences. (Running on oeis4.)