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A012940 as a simple table

n a(n)
0 1
1 -4
2 8
3 -118
4 1912
5 53094
6 7487532
7 722809274
8 92118225104
9 13286089862286
10 2227449108601940
11 418148868660099330
12 84975662262230959480
13 17350569219593304893078
14 2817250972553523348038716
15 -252622788373980942633484214

[1,-4,8,-118,1912,53094,7487532,722809274,
 92118225104,13286089862286,2227449108601940,
 418148868660099330,84975662262230959480,
 17350569219593304893078,2817250972553523348038716,
 -252622788373980942633484214]

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Last modified March 4 02:53 EST 2024. Contains 370522 sequences. (Running on oeis4.)