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A250016 as a simple table

n a(n)
1 20
2 520
3 5200
4 30360
5 125780
6 412160
7 1140160
8 2776080
9 6119220
10 12455960
11 23755600
12 42913000
13 74043060
14 122832080
15 196951040
16 306535840
17 464739540
18 688361640
19 998559440
20 1421646520
21 1989983380
22 2742965280
23 3728112320

[20,520,5200,30360,125780,412160,1140160,2776080,
 6119220,12455960,23755600,42913000,74043060,
 122832080,196951040,306535840,464739540,688361640,
 998559440,1421646520,1989983380,2742965280,
 3728112320]

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Last modified April 18 16:22 EDT 2024. Contains 371780 sequences. (Running on oeis4.)