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A199259 as a simple table

n a(n)
1 3
2 18
3 114
4 713
5 4508
6 28652
7 183442
8 1182513
9 7674706
10 50149664
11 329879020
12 2183961009
13 14549033194
14 97499792198
15 657083735088
16 4451886557217
17 30312912452386
18 207359582690700
19 1424583104395390
20 9826011131492859

[3,18,114,713,4508,28652,183442,1182513,7674706,
 50149664,329879020,2183961009,14549033194,
 97499792198,657083735088,4451886557217,
 30312912452386,207359582690700,1424583104395390,
 9826011131492859]

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Last modified July 5 13:39 EDT 2022. Contains 355099 sequences. (Running on oeis4.)