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A053926 as a simple table

n a(n)
1 5
2 15
3 235
4 765
5 9235
6 7632515
7 9412135
8 14909235
9 15891903135
10 24142333335
11 150086151335
12 150274932335
13 235695839765
14 5025225227615
15 28685930096865

[5,15,235,765,9235,7632515,9412135,14909235,
 15891903135,24142333335,150086151335,150274932335,
 235695839765,5025225227615,28685930096865]

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Last modified September 26 23:47 EDT 2020. Contains 337378 sequences. (Running on oeis4.)