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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.)