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A156016 as a simple table

n a(n)
0 1
1 3
2 9
3 36
4 162
5 783
6 3969
7 20817
8 112023
9 615033
10 3431403
11 19398690
12 110880900
13 639730305
14 3720657807
15 21790419444
16 128398625658
17 760668489729
18 4528069760691
19 27070491820644
20 162464919528222
21 978463778897637

[1,3,9,36,162,783,3969,20817,112023,615033,
 3431403,19398690,110880900,639730305,3720657807,
 21790419444,128398625658,760668489729,
 4528069760691,27070491820644,162464919528222,
 978463778897637]

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Last modified April 25 13:02 EDT 2024. Contains 371969 sequences. (Running on oeis4.)