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A060239 as a simple table

n a(n)
1 1
2 -1
3 4
4 -8
5 128
6 512
7 -18432
8 73728
9 -884736
10 -14155776
11 1415577600
12 11324620800
13 -1630745395200
14 -58706834227200
15 -3757237390540800
16 30057899124326400
17 -7694822175827558400
18 -92337866109930700800

[1,-1,4,-8,128,512,-18432,73728,-884736,-14155776,
 1415577600,11324620800,-1630745395200,
 -58706834227200,-3757237390540800,
 30057899124326400,-7694822175827558400,
 -92337866109930700800]

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Last modified April 25 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)