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A209339 as a simple table

n a(n)
1 1
2 4
3 7
4 35
5 145
6 770
7 4029
8 22739
9 130282
10 766177
11 4566523
12 27587850
13 168340643
14 1036444786
15 6429150260
16 40144480583 

[1,4,7,35,145,770,4029,22739,130282,766177,
 4566523,27587850,168340643,1036444786,6429150260,
 40144480583]

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Last modified September 9 20:10 EDT 2024. Contains 375765 sequences. (Running on oeis4.)