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A207737 as a simple table

n a(n)
1 9
2 81
3 361
4 1849
5 10201
6 58081
7 335241
8 1946025
9 11323225
10 65950641
11 384277609
12 2239466329
13 13051920025
14 76070604481
15 443368207881
16 2584130195529
17 15061392571801
18 87784176001041
19 511643544572521
20 2982076804476025

[9,81,361,1849,10201,58081,335241,1946025,
 11323225,65950641,384277609,2239466329,
 13051920025,76070604481,443368207881,
 2584130195529,15061392571801,87784176001041,
 511643544572521,2982076804476025]

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Last modified August 3 15:06 EDT 2024. Contains 374894 sequences. (Running on oeis4.)