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A292515
as a simple table
n
a(n)
1
0
2
0
3
0
4
0
5
0
6
1
7
0
8
1
9
1
10
3
11
3
12
12
13
19
14
63
15
153
16
499
17
1473
18
4974
19
16296
20
56102
21
192899
22
674678
23
2381395
24
8468424
[0,0,0,0,0,1,0,1,1,3,3,12,19,63,153,499,1473,4974, 16296,56102,192899,674678,2381395,8468424]
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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)