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A031436 as a simple table

n a(n)
0 1
1 1
2 0
3 0
4 0
5 0
6 0
7 1
8 0
9 1
10 1
11 1
12 3
13 7
14 1
15 119
16 398
17 161925
18 2412890 

[1,1,0,0,0,0,0,1,0,1,1,1,3,7,1,119,398,161925,
 2412890]

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Last modified April 19 14:50 EDT 2024. Contains 371792 sequences. (Running on oeis4.)