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A207719 as a simple table

n a(n)
1 9
2 81
3 387
4 2205
5 12015
6 66339
7 364869
8 2009223
9 11059965
10 60888177
11 335192787
12 1845279405
13 10158455727
14 55923440859
15 307864679445
16 1694829122631
17 9330221332989
18 51363898889337
19 282763934436339
20 1556646681947805

[9,81,387,2205,12015,66339,364869,2009223,
 11059965,60888177,335192787,1845279405,
 10158455727,55923440859,307864679445,
 1694829122631,9330221332989,51363898889337,
 282763934436339,1556646681947805]

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Last modified September 9 09:37 EDT 2024. Contains 375764 sequences. (Running on oeis4.)