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A155402 as a simple table

n a(n)
5 1
6 4
7 10
8 22
9 40
10 161
11 580
12 2088
13 9630
14 52661
15 324848
16 2048063
17 15783536
18 139241607
19 1379819761 

[1,4,10,22,40,161,580,2088,9630,52661,324848,
 2048063,15783536,139241607,1379819761]

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)