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A001469 as a simple table

n a(n)
1 -1
2 1
3 -3
4 17
5 -155
6 2073
7 -38227
8 929569
9 -28820619
10 1109652905
11 -51943281731
12 2905151042481
13 -191329672483963
14 14655626154768697
15 -1291885088448017715
16 129848163681107301953
17 -14761446733784164001387

[-1,1,-3,17,-155,2073,-38227,929569,-28820619,
 1109652905,-51943281731,2905151042481,
 -191329672483963,14655626154768697,
 -1291885088448017715,129848163681107301953,
 -14761446733784164001387]

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Last modified August 20 10:20 EDT 2018. Contains 313915 sequences. (Running on oeis4.)