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A057729 as a simple table

n a(n)
1 0
2 0
3 1
4 1
5 1
6 4
7 5
8 16
9 37
10 120
11 345
12 1181
13 3844
14 13429
15 46736
16 167172 

[0,0,1,1,1,4,5,16,37,120,345,1181,3844,13429,
 46736,167172]

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Last modified September 6 17:04 EDT 2024. Contains 375715 sequences. (Running on oeis4.)