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A213409 as a simple table

n a(n)
0 1
1 3
2 252
3 1563022
4 563716946982
5 10517711119760250261
6 9692061982207456039533424586
7 430311348543725825536505706371595438684
8 906895928239445077568583988067142630846220290783969
9 89857639488565787203362892584824012528872539028234934088960440084

[1,3,252,1563022,563716946982,
 10517711119760250261,9692061982207456039533424586,
 430311348543725825536505706371595438684,
 90689592823944507756858398806714263084622029078396\
 9,
 89857639488565787203362892584824012528872539028234\
 934088960440084]

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Last modified March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)