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A172650 as a simple table

n a(n)
1 0
2 0
3 90
4 34145664
5 101471705778601
6 1563133410663239958840
7 101720498887190010630546323580
8 23601511081513772065907556838530960960
9 17017920144305424073117333502327304544668289632

[0,0,90,34145664,101471705778601,
 1563133410663239958840,
 101720498887190010630546323580,
 23601511081513772065907556838530960960,
 17017920144305424073117333502327304544668289632]

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Last modified May 20 03:10 EDT 2019. Contains 323412 sequences. (Running on oeis4.)