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A225957 as a simple table

n a(n)
0 1
1 2
2 -6
3 12
4 38
5 -108
6 148
7 168
8 -922
9 2294
10 -2656
11 -1732
12 17908
13 -44516
14 60896
15 -6936
16 -206474
17 650848
18 -1181394
19 1146324
20 865832
21 -6609592
22 16632596
23 -26643544
24 22498916
25 23275482
26 -144152248
27 349896736
28 -563311472
29 532552508
30 233516176
31 -2378435472
32 6264582710

[1,2,-6,12,38,-108,148,168,-922,2294,-2656,-1732,
 17908,-44516,60896,-6936,-206474,650848,-1181394,
 1146324,865832,-6609592,16632596,-26643544,
 22498916,23275482,-144152248,349896736,-563311472,
 532552508,233516176,-2378435472,6264582710]

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Last modified July 16 10:27 EDT 2024. Contains 374345 sequences. (Running on oeis4.)