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A091593 as a simple table

n a(n)
0 1
1 -1
2 -1
3 5
4 -3
5 -21
6 51
7 41
8 -391
9 407
10 1927
11 -6227
12 -2507
13 49347
14 -71109
15 -236079
16 966129
17 9519
18 -7408497
19 13685205
20 32079981
21 -167077221
22 60639939
23 1209248505
24 -2761755543
25 -4457338681
26 30629783831
27 -22124857219
28 -206064020315
29 572040039283
30 590258340811

[1,-1,-1,5,-3,-21,51,41,-391,407,1927,-6227,-2507,
 49347,-71109,-236079,966129,9519,-7408497,
 13685205,32079981,-167077221,60639939,1209248505,
 -2761755543,-4457338681,30629783831,-22124857219,
 -206064020315,572040039283,590258340811]

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Last modified June 9 09:02 EDT 2024. Contains 373238 sequences. (Running on oeis4.)