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A009126 as a simple table

n a(n)
0 1
1 0
2 1
3 -3
4 4
5 0
6 16
7 -168
8 64
9 3840
10 256
11 -177408
12 1024
13 11182080
14 4096
15 -951886848
16 16384
17 104932638720
18 65536
19 -14544442687488
20 262144
21 2475749026037760
22 1048576
23 -507711943255523328
24 4194304
25 123460740095095603200
26 16777216

[1,0,1,-3,4,0,16,-168,64,3840,256,-177408,1024,
 11182080,4096,-951886848,16384,104932638720,65536,
 -14544442687488,262144,2475749026037760,1048576,
 -507711943255523328,4194304,123460740095095603200,
 16777216]

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Last modified April 25 12:33 EDT 2024. Contains 371969 sequences. (Running on oeis4.)