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A071109 as a simple table

n a(n)
0 1
1 -2
2 2
3 -6
4 14
5 -26
6 50
7 -102
8 214
9 -426
10 834
11 -1678
12 3398
13 -6778
14 13482
15 -27022
16 54198
17 -108306
18 216346
19 -432878
20 866334
21 -1732386
22 3463626
23 -6927926
24 13858350
25 -27715378
26 55426002
27 -110855030
28 221719582
29 -443433610
30 886848930
31 -1773709078
32 3547455846

[1,-2,2,-6,14,-26,50,-102,214,-426,834,-1678,3398,
 -6778,13482,-27022,54198,-108306,216346,-432878,
 866334,-1732386,3463626,-6927926,13858350,
 -27715378,55426002,-110855030,221719582,
 -443433610,886848930,-1773709078,3547455846]

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Last modified July 24 18:12 EDT 2024. Contains 374585 sequences. (Running on oeis4.)