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A203558 as a simple table

n a(n)
1 3
2 9
3 9
4 33
5 53
6 183
7 395
8 1249
9 3141
10 9459
11 25655
12 75639
13 212943
14 623093
15 1787609
16 5222369
17 15134933
18 44250051
19 128996855
20 377748883
21 1105350731
22 3242546393
23 9513228125
24 27953744695
25 82176836303
26 241834027353
27 712070156205

[3,9,9,33,53,183,395,1249,3141,9459,25655,75639,
 212943,623093,1787609,5222369,15134933,44250051,
 128996855,377748883,1105350731,3242546393,
 9513228125,27953744695,82176836303,241834027353,
 712070156205]

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Last modified September 21 00:14 EDT 2021. Contains 347596 sequences. (Running on oeis4.)