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A117394 as a simple table

n a(n)
0 1
1 2
2 2
3 6
4 30
5 2310
6 9699690
7 304250263527210
8 40729680599249024150621323470
9 10014646650599190067509233131649940057366334653200433090
10 16516447045902521732188973253623425320896207954043566485360902980990824644545340710198976591011245999110

[1,2,2,6,30,2310,9699690,304250263527210,
 40729680599249024150621323470,
 10014646650599190067509233131649940057366334653200\
 433090,
 16516447045902521732188973253623425320896207954043\
 56648536090298099082464454534071019897659101124599\
 9110]

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Last modified June 16 04:56 EDT 2021. Contains 345056 sequences. (Running on oeis4.)