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A294474 as a simple table

n a(n)
1 1
2 -1
3 -7
4 5
5 87
6 -189
7 -1941
8 6515
9 49795
10 -229867
11 -1343239
12 8320303
13 36790861
14 -305098413
15 -989510467
16 11255950785
17 24982028631
18 -415990506193
19 -537407696757
20 15351256446099
21 6424844980489
22 -564158722662119
23 245084502553583
24 20595643407110741
25 -26734732721361955
26 -744981949442089559
27 1643062426565260297
28 26621246008843146659
29 -85112137855646858055
30 -936300170489142867171
31 4053227035994699790679
32 32249453191213868198529

[1,-1,-7,5,87,-189,-1941,6515,49795,-229867,
 -1343239,8320303,36790861,-305098413,-989510467,
 11255950785,24982028631,-415990506193,
 -537407696757,15351256446099,6424844980489,
 -564158722662119,245084502553583,
 20595643407110741,-26734732721361955,
 -744981949442089559,1643062426565260297,
 26621246008843146659,-85112137855646858055,
 -936300170489142867171,4053227035994699790679,
 32249453191213868198529]

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Last modified July 30 16:50 EDT 2021. Contains 346359 sequences. (Running on oeis4.)