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A032315 as a simple table

n a(n)
0 1
1 1
2 2
3 9
4 22
5 115
6 576
7 2569
8 16780
9 100041
10 660220
11 4683811
12 36128544
13 279022627
14 2268178290
15 20870481675
16 183829795216
17 1733470364065
18 17049910933404
19 176955696148171
20 1863799931450200
21 19988658792216891
22 227401089360840802
23 2637188651044286923

[1,1,2,9,22,115,576,2569,16780,100041,660220,
 4683811,36128544,279022627,2268178290,20870481675,
 183829795216,1733470364065,17049910933404,
 176955696148171,1863799931450200,
 19988658792216891,227401089360840802,
 2637188651044286923]

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Last modified June 7 09:09 EDT 2024. Contains 373161 sequences. (Running on oeis4.)