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A321680
as a simple table
n
a(n)
0
1
1
1
2
3
3
4
4
9
5
14
6
39
7
80
8
216
9
538
10
1460
[1,1,3,4,9,14,39,80,216,538,1460]
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Last modified March 29 10:59 EDT 2024. Contains 371277 sequences. (Running on oeis4.)