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A180993 as a simple table

n a(n)
1 0
2 0
3 4
4 2200
5 1283875
6 1408620622
7 3595756291357
8 24101118080151321
9 459717083252930306823
10 26428405768066461371584216
11 4776623401553625413419662091924

[0,0,4,2200,1283875,1408620622,3595756291357,
 24101118080151321,459717083252930306823,
 26428405768066461371584216,
 4776623401553625413419662091924]

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Last modified August 24 18:52 EDT 2019. Contains 326295 sequences. (Running on oeis4.)