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A294686 as a simple table

n a(n)
1 0
2 0
3 6
4 0
5 260
6 20720
7 6
8 5112
9 1223136
10 257706024
11 48
12 81876
13 67769552
14 54278580036
15 44900438149488
16 260
17 1223396
18 3731753700
19 11681058472672
20 38403264917970196
21 131160169581733489616
22 1200
23 17815020
24 207438938000
25 2570217454576416
26 33725471278376393424
27 460532748521625850986660
28 6467585568566200114362823920
29 5106
30 257706012
31 11681057249536
32 576229125971686224

[0,0,6,0,260,20720,6,5112,1223136,257706024,48,
 81876,67769552,54278580036,44900438149488,260,
 1223396,3731753700,11681058472672,
 38403264917970196,131160169581733489616,1200,
 17815020,207438938000,2570217454576416,
 33725471278376393424,460532748521625850986660,
 6467585568566200114362823920,5106,257706012,
 11681057249536,576229125971686224]

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Last modified June 24 13:56 EDT 2024. Contains 373679 sequences. (Running on oeis4.)