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A289084 as a simple table

n a(n)
0 2
1 0
2 0
3 -1
4 -8
5 -44
6 -208
7 -878
8 -2848
9 1344
10 165888
11 2386288
12 26058368
13 242819936
14 1859201152
15 8317586192
16 -76925639168
17 -3065481255936
18 -60922964385792
19 -959095854652672
20 -12571364621944832
21 -124608931461592064
22 -359648778853101568
23 25091103143957181952

[2,0,0,-1,-8,-44,-208,-878,-2848,1344,165888,
 2386288,26058368,242819936,1859201152,8317586192,
 -76925639168,-3065481255936,-60922964385792,
 -959095854652672,-12571364621944832,
 -124608931461592064,-359648778853101568,
 25091103143957181952]

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)