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A189945 as a simple table

n a(n)
1 5
2 15
3 63
4 384
5 2393
6 13569
7 72744
8 393006
9 2206620
10 12731028
11 73789033
12 425385252
13 2445427072
14 14098065430
15 81698759400
16 475327637850
17 2770724256604
18 16165039535028
19 94402460826924
20 552050600817600
21 3233027830180059

[5,15,63,384,2393,13569,72744,393006,2206620,
 12731028,73789033,425385252,2445427072,
 14098065430,81698759400,475327637850,
 2770724256604,16165039535028,94402460826924,
 552050600817600,3233027830180059]

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Last modified October 18 19:31 EDT 2021. Contains 348069 sequences. (Running on oeis4.)