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A030450 as a simple table

n a(n)
0 1
1 1
2 4
3 144
4 331776
5 2751882854400
6 272622932796264897576960000
7 3641839910835401567626683591527643364677019238400000000 

[1,1,4,144,331776,2751882854400,
 272622932796264897576960000,
 36418399108354015676266835915276433646770192384000\
 00000]

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Last modified April 16 04:38 EDT 2024. Contains 371696 sequences. (Running on oeis4.)