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A297390 as a simple table

n a(n)
1 3
2 9
3 19
4 57
5 139
6 369
7 963
8 2489
9 6523
10 16929
11 44147
12 114953
13 299307
14 779697
15 2030243
16 5287833
17 13770971
18 35864001
19 93402579
20 243249193
21 633503627
22 1649849553
23 4296752131
24 11190160825
25 29142853947
26 75897603297
27 197662332211

[3,9,19,57,139,369,963,2489,6523,16929,44147,
 114953,299307,779697,2030243,5287833,13770971,
 35864001,93402579,243249193,633503627,1649849553,
 4296752131,11190160825,29142853947,75897603297,
 197662332211]

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Last modified October 2 08:34 EDT 2022. Contains 357191 sequences. (Running on oeis4.)