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A239629 as a simple table

n a(n)
1 1
2 2
3 5
4 10
5 30
6 130
7 390
8 2730
9 13260
10 64090
11 192270
12 1345890
13 7113990
14 49797930
15 291673590
16 2041715130

[1,2,5,10,30,130,390,2730,13260,64090,192270,
 1345890,7113990,49797930,291673590,2041715130]

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Last modified March 29 11:14 EDT 2024. Contains 371278 sequences. (Running on oeis4.)