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A005550 as a simple table

n a(n)
3 3
4 16
5 57
6 184
7 601
8 2036
9 7072
10 25088
11 90503
12 330836
13 1222783
14 4561058
15 17145990
16 64888020
17 246995400
18 944986464
19 3631770111
20 14013725268
21 54268946152
22 210842757798
23 821569514032
24 3209925357702
25 12572219405144

[3,16,57,184,601,2036,7072,25088,90503,330836,
 1222783,4561058,17145990,64888020,246995400,
 944986464,3631770111,14013725268,54268946152,
 210842757798,821569514032,3209925357702,
 12572219405144]

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Last modified May 20 06:19 EDT 2024. Contains 372703 sequences. (Running on oeis4.)