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A207560 as a simple table

n a(n)
1 9
2 81
3 241
4 636
5 2135
6 6709
7 23276
8 78733
9 277781
10 973608
11 3477827
12 12422849
13 44780404
14 161681185
15 586480585
16 2130883040
17 7761845079
18 28308582237
19 103395253764
20 377977638085
21 1382951559309
22 5062965194920
23 18545296800603

[9,81,241,636,2135,6709,23276,78733,277781,973608,
 3477827,12422849,44780404,161681185,586480585,
 2130883040,7761845079,28308582237,103395253764,
 377977638085,1382951559309,5062965194920,
 18545296800603]

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Last modified September 10 16:25 EDT 2024. Contains 375791 sequences. (Running on oeis4.)