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A325010 as a simple table

n a(n)
1 0
2 1
3 0
4 0
5 3
6 3
7 0
8 0
9 1
10 16
11 30
12 15
13 0
14 0
15 0
16 15
17 135
18 330
19 315
20 105
21 0
22 0
23 0
24 6
25 222
26 1581
27 4410
28 5880
29 3780
30 945
31 0
32 0
33 0
34 1
35 205
36 3760
37 23604
38 71078
39 116550
40 107100
41 51975
42 10395
43 0
44 0
45 0
46 0
47 120
48 5715
49 73755
50 427260
51 1351980
52 2552130
53 2962575
54 2079000
55 810810
56 135135

[0,1,0,0,3,3,0,0,1,16,30,15,0,0,0,15,135,330,315,
 105,0,0,0,6,222,1581,4410,5880,3780,945,0,0,0,1,
 205,3760,23604,71078,116550,107100,51975,10395,0,
 0,0,0,120,5715,73755,427260,1351980,2552130,
 2962575,2079000,810810,135135]

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Last modified September 27 21:12 EDT 2021. Contains 347698 sequences. (Running on oeis4.)