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A090898 as a simple table

n a(n)
1 6
2 28
3 241
4 11706
5 28024
6 33789
7 1526800
8 73154827
9 246890641
10 6026562951
11 45111908393
12 1016065419627
13 8838254734240 

[6,28,241,11706,28024,33789,1526800,73154827,
 246890641,6026562951,45111908393,1016065419627,
 8838254734240]

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Last modified April 12 09:30 EDT 2021. Contains 342920 sequences. (Running on oeis4.)