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A089275 as a simple table

n a(n)
1 1
2 1
3 18
4 1
5 118
6 600
7 1
8 412
9 11772
10 35280
11 1
12 1060
13 97308
14 1494576
15 3265920
16 1
17 2270
18 508708
19 23753736
20 249815520
21 439084800
22 1
23 4298
24 1989148
25 218417400
26 6710001408
27 54187574400
28 80951270400
29 1
30 7448
31 6355048
32 1402502400

[1,1,18,1,118,600,1,412,11772,35280,1,1060,97308,
 1494576,3265920,1,2270,508708,23753736,249815520,
 439084800,1,4298,1989148,218417400,6710001408,
 54187574400,80951270400,1,7448,6355048,1402502400]

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)