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A171212 as a simple table

n a(n)
0 1
1 2
2 16
3 320
4 12928
5 985088
6 140861440
7 38451150848
8 20403322617856
9 21307854867660800
10 44110759073910095872
11 181739941085108158595072
12 1493546441998961207249207296
13 24512116566896662943648857456640

[1,2,16,320,12928,985088,140861440,38451150848,
 20403322617856,21307854867660800,
 44110759073910095872,181739941085108158595072,
 1493546441998961207249207296,
 24512116566896662943648857456640]

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Last modified December 9 10:58 EST 2023. Contains 367690 sequences. (Running on oeis4.)