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A139561
as a simple table
n
a(n)
0
1
1
3
2
9
3
27
4
78
5
216
6
568
7
1416
8
3327
[1,3,9,27,78,216,568,1416,3327]
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Last modified August 19 03:19 EDT 2024. Contains 375284 sequences. (Running on oeis4.)