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A094030 as a simple table

n a(n)
4 1
5 0
6 2
7 0
8 8
9 0
10 23
11 0
12 71
13 0
14 225
15 0
16 746
17 0
18 2555
19 0
20 8999
21 0
22 32297
23 0

[1,0,2,0,8,0,23,0,71,0,225,0,746,0,2555,0,8999,0,
 32297,0]

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Last modified October 26 05:46 EDT 2021. Contains 348256 sequences. (Running on oeis4.)