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A074597 as a simple table

n a(n)
1 3
2 21
3 99
4 1209
5 9123
6 164331
7 34437
8 823467
9 11066355
10 330317679
11 1355321733
12 990324351
13 19205317149
14 802205873349
15 815985479709
16 38957620226163
17 197637723726063
18 10617280487243739
19 75264900895382073

[3,21,99,1209,9123,164331,34437,823467,11066355,
 330317679,1355321733,990324351,19205317149,
 802205873349,815985479709,38957620226163,
 197637723726063,10617280487243739,
 75264900895382073]

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)