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A049365 as a simple table

n a(n)
1 1
2 0
3 1
4 1
5 3
6 7
7 21
8 81
9 401
10 2499
11 18604
12 158515
13 1464681
14 14305475 

[1,0,1,1,3,7,21,81,401,2499,18604,158515,1464681,
 14305475]

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Last modified April 19 02:12 EDT 2024. Contains 371782 sequences. (Running on oeis4.)