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A227480 as a simple table

n a(n)
1 3
2 120
3 528
4 139128
5 160554240
6 812293020528
7 379188080252621270252095320
8 2816640597719456759751165488439681098364673273236637971046370174350128 

[3,120,528,139128,160554240,812293020528,
 379188080252621270252095320,
 28166405977194567597511654884396810983646732732366\
 37971046370174350128]

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Last modified May 8 14:27 EDT 2024. Contains 372334 sequences. (Running on oeis4.)