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A207484 as a simple table

n a(n)
1 9
2 81
3 217
4 530
5 1459
6 3947
7 11306
8 32445
9 96201
10 286920
11 873201
12 2673027
13 8288284
14 25824249
15 81128201
16 255825008
17 811028901
18 2578371055
19 8225731808
20 26296176189
21 84258830581
22 270382678904
23 868986130961
24 2795785995547
25 9004226853968

[9,81,217,530,1459,3947,11306,32445,96201,286920,
 873201,2673027,8288284,25824249,81128201,
 255825008,811028901,2578371055,8225731808,
 26296176189,84258830581,270382678904,868986130961,
 2795785995547,9004226853968]

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Last modified June 26 00:12 EDT 2022. Contains 354870 sequences. (Running on oeis4.)