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A117581 as a simple table

n a(n)
1 2
2 9
3 81
4 4375
5 9801
6 123201
7 336141
8 11859211
9 11859211
10 177182721
11 1611308700
12 3463200000
13 63927525376
14 421138799640
15 1109496723126
16 1453579866025
17 20628591204481
18 31887350832897
19 31887350832897
20 119089041053697

[2,9,81,4375,9801,123201,336141,11859211,11859211,
 177182721,1611308700,3463200000,63927525376,
 421138799640,1109496723126,1453579866025,
 20628591204481,31887350832897,31887350832897,
 119089041053697]

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Last modified April 24 18:03 EDT 2024. Contains 371962 sequences. (Running on oeis4.)