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A219732 as a simple table

n a(n)
1 0
2 0
3 1
4 0
5 1
6 9
7 1
8 0
9 74
10 33
11 1
12 1170
13 1
14 129
15 15101
16 0
17 1
18 187758
19 1
20 67650
21 615700
22 2049
23 1
24 4793490
25 3247204
26 8193
27 262658
28 4227330
29 1
30 480000312
31 1
32 0
33 2458463380
34 131073
35 10787055277
36 19903096980
37 1
38 524289
39 67117058
40 567489872400
41 1
42 2686322969514
43 1

[0,0,1,0,1,9,1,0,74,33,1,1170,1,129,15101,0,1,
 187758,1,67650,615700,2049,1,4793490,3247204,8193,
 262658,4227330,1,480000312,1,0,2458463380,131073,
 10787055277,19903096980,1,524289,67117058,
 567489872400,1,2686322969514,1]

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Last modified April 6 15:41 EDT 2020. Contains 333276 sequences. (Running on oeis4.)