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A131635 as a simple table

n a(n)
1 1
2 3
3 18
4 6
5 60
6 300
7 10
8 150
9 1050
10 4900
11 15
12 315
13 2940
14 17640
15 79380
16 21
17 588
18 7056
19 52920
20 291060
21 1280664
22 28
23 1008
24 15120
25 138600
26 914760
27 4756752
28 20612592
29 36
30 1620
31 29700
32 326700
33 2548260
34 15459444
35 77297220
36 331273800
37 45
38 2475
39 54450

[1,3,18,6,60,300,10,150,1050,4900,15,315,2940,
 17640,79380,21,588,7056,52920,291060,1280664,28,
 1008,15120,138600,914760,4756752,20612592,36,1620,
 29700,326700,2548260,15459444,77297220,331273800,
 45,2475,54450]

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)