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A005772 as a simple table

n a(n)
3 3
4 14
5 95
6 424
7 3269
8 21202
9 178443
10 1622798
11 17064179
12 177093256
13 2293658861
14 29296367476
15 416567286225
16 6250052633294
17 103272943796399
18 1717954871163982
19 32068960264609523
20 601640759502181648
21 12257756112146028309
22 257187849583000601516

[3,14,95,424,3269,21202,178443,1622798,17064179,
 177093256,2293658861,29296367476,416567286225,
 6250052633294,103272943796399,1717954871163982,
 32068960264609523,601640759502181648,
 12257756112146028309,257187849583000601516]

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Last modified August 15 13:11 EDT 2020. Contains 336504 sequences. (Running on oeis4.)