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A303395 as a simple table

n a(n)
0 1
1 -2
2 -14
3 -140
4 -586
5 -5628
6 -44492
7 -187864
8 -482906
9 -17262828
10 -37958116
11 65242328
12 -2453533124
13 21817485480
14 113877127592
15 -2570293967536
16 28064994368262
17 169252831757492
18 -188223954450804
19 12624245609040632
20 54083158292451540
21 -158891267358816264

[1,-2,-14,-140,-586,-5628,-44492,-187864,-482906,
 -17262828,-37958116,65242328,-2453533124,
 21817485480,113877127592,-2570293967536,
 28064994368262,169252831757492,-188223954450804,
 12624245609040632,54083158292451540,
 -158891267358816264]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)