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A353915 as a simple table

n a(n)
1 1
2 -2
3 -2
4 -16
5 -16
6 16
7 -832
8 -22016
9 -27648
10 173568
11 -4228608
12 -57965568
13 -398991360
14 2554896384
15 -98606039040
16 -7568860053504
17 -17762113880064
18 200091412463616
19 -7331825098948608
20 -258326401420099584
21 -2009778629489197056
22 25949098553870647296
23 -1278044473427380666368

[1,-2,-2,-16,-16,16,-832,-22016,-27648,173568,
 -4228608,-57965568,-398991360,2554896384,
 -98606039040,-7568860053504,-17762113880064,
 200091412463616,-7331825098948608,
 -258326401420099584,-2009778629489197056,
 25949098553870647296,-1278044473427380666368]

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Last modified August 3 15:38 EDT 2024. Contains 374894 sequences. (Running on oeis4.)