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A271405 as a simple table

n a(n)
1 0
2 0
3 15
4 11244
5 133557336
6 19403620120548
7 21047213682560996208
8 149800609621920261292052832
9 6977143669666797212087528454453012
10 2148748829446463101953971811931782270725784 

[0,0,15,11244,133557336,19403620120548,
 21047213682560996208,149800609621920261292052832,
 6977143669666797212087528454453012,
 2148748829446463101953971811931782270725784]

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Last modified April 17 21:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)