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A202015 as a simple table

n a(n)
1 1
2 1
3 1
4 0
5 2
6 2
7 0
8 2
9 6
10 1
11 7
12 19
13 1
14 7
15 63
16 0
17 16
18 216
19 0
20 16
21 760
22 3
23 49
24 2725
25 2
26 48
27 9910
28 0
29 158
30 36446

[1,1,1,0,2,2,0,2,6,1,7,19,1,7,63,0,16,216,0,16,
 760,3,49,2725,2,48,9910,0,158,36446]

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Last modified January 22 15:13 EST 2022. Contains 350481 sequences. (Running on oeis4.)