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A330512 as a simple table

n a(n)
1 1
2 2
3 5
4 24
5 129
6 600
7 4815
8 40320
9 313425
10 3900960
11 39023775
12 399168000
13 6335076825
14 83286403200
15 1169542749375
16 20922789888000
17 359796258446625
18 5529827983680000
19 120457648437501375
20 2615369658789888000
21 40723609672075955625

[1,2,5,24,129,600,4815,40320,313425,3900960,
 39023775,399168000,6335076825,83286403200,
 1169542749375,20922789888000,359796258446625,
 5529827983680000,120457648437501375,
 2615369658789888000,40723609672075955625]

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Last modified August 28 05:00 EDT 2024. Contains 375477 sequences. (Running on oeis4.)