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A005400 as a simple table

n a(n)
1 0
2 9
3 18
4 -306
5 -3240
6 49176
7 1466640
8 -13626000
9 -1172668032
10 75256704

[0,9,18,-306,-3240,49176,1466640,-13626000,
 -1172668032,75256704]

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Last modified May 10 16:34 EDT 2021. Contains 343775 sequences. (Running on oeis4.)