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A172856 as a simple table

n a(n)
1 0
2 0
3 55
4 571189
5 50984927470
6 23739529252540151
7 48305357301322263405109
8 370911274700550803678566199652
9 9515813289536524717883338564939648176
10 736766457419317377244512506283142581954316500 

[0,0,55,571189,50984927470,23739529252540151,
 48305357301322263405109,
 370911274700550803678566199652,
 9515813289536524717883338564939648176,
 736766457419317377244512506283142581954316500]

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Last modified August 22 05:29 EDT 2024. Contains 375356 sequences. (Running on oeis4.)