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A217995 as a simple table

n a(n)
1 3
2 9
3 25
4 81
5 241
6 719
7 2181
8 6543
9 19623
10 58983
11 176995
12 531045
13 1593739
14 4781741
15 14346105
16 43041933
17 129130449
18 387399819
19 1162223437
20 3486708387
21 10460197183
22 31380761819
23 94142587347
24 282428344593
25 847286292987
26 2541861239481

[3,9,25,81,241,719,2181,6543,19623,58983,176995,
 531045,1593739,4781741,14346105,43041933,
 129130449,387399819,1162223437,3486708387,
 10460197183,31380761819,94142587347,282428344593,
 847286292987,2541861239481]

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Last modified April 19 08:45 EDT 2024. Contains 371782 sequences. (Running on oeis4.)