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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.)