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A271516 as a simple table

n a(n)
1 0
2 0
3 12
4 3192
5 1460310
6 1400351232
7 2894119482336
8 13177722597521472
9 135132206434712566080

[0,0,12,3192,1460310,1400351232,2894119482336,
 13177722597521472,135132206434712566080]

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Last modified April 24 13:00 EDT 2024. Contains 371945 sequences. (Running on oeis4.)