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A141424 as a simple table

n a(n)
0 1
1 -3
2 3
3 -5
4 5
5 -7
6 7
7 3
8 -3
9 -121
10 121
11 1261
12 -1261
13 -20583
14 20583
15 888403
16 -888403
17 -24729925
18 24729925
19 862992399
20 -862992399
21 -36913939769
22 36913939769
23 1899853421885
24 -1899853421885
25 -115841483491323
26 115841483491323
27 8258802033519361

[1,-3,3,-5,5,-7,7,3,-3,-121,121,1261,-1261,-20583,
 20583,888403,-888403,-24729925,24729925,862992399,
 -862992399,-36913939769,36913939769,1899853421885,
 -1899853421885,-115841483491323,115841483491323,
 8258802033519361]

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Last modified May 20 21:47 EDT 2024. Contains 372720 sequences. (Running on oeis4.)