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A122570 as a simple table

n a(n)
1 0
2 2
3 6
4 150
5 27030
6 2523490710
7 7608434000728254870
8 199931532107794273605284333428918544790
9 47758914269546354982683078068829456704164423862093743397580034411621752859030 

[0,2,6,150,27030,2523490710,7608434000728254870,
 199931532107794273605284333428918544790,
 47758914269546354982683078068829456704164423862093\
 743397580034411621752859030]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)