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A187863 as a simple table

n a(n)
1 0
2 0
3 1008
4 61668
5 636102
6 2432312
7 6343874
8 12918800
9 22675997
10 35694138
11 52156394
12 71825663
13 94825088
14 120967427
15 150298947
16 182782127
17 218416967
18 257203467
19 299141627
20 344231447
21 392472927
22 443866067
23 498410867
24 556107327

[0,0,1008,61668,636102,2432312,6343874,12918800,
 22675997,35694138,52156394,71825663,94825088,
 120967427,150298947,182782127,218416967,257203467,
 299141627,344231447,392472927,443866067,498410867,
 556107327]

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Last modified May 23 04:06 EDT 2022. Contains 353959 sequences. (Running on oeis4.)