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A146151
as a simple table
n
a(n)
1
1
2
1
3
1
4
3
5
9
6
27
7
119
8
633
9
3943
10
30791
11
332473
12
4676705
13
79725173
14
1817184081
15
50545874411
16
1811092006865
[1,1,1,3,9,27,119,633,3943,30791,332473,4676705, 79725173,1817184081,50545874411,1811092006865]
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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)