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A189540 as a simple table

n a(n)
1 24
2 72
3 544
4 3664
5 26804
6 204544
7 1526520
8 11544464
9 87396896
10 665272176
11 5096651048
12 39149596736
13 301739941644
14 2331728722640
15 18056185672312
16 140109131577968
17 1089078310071600
18 8478661335953200
19 66101375005684576

[24,72,544,3664,26804,204544,1526520,11544464,
 87396896,665272176,5096651048,39149596736,
 301739941644,2331728722640,18056185672312,
 140109131577968,1089078310071600,8478661335953200,
 66101375005684576]

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Last modified May 6 16:55 EDT 2024. Contains 372297 sequences. (Running on oeis4.)