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A215349 as a simple table

n a(n)
1 1
2 -4
3 8
4 -16
5 30
6 -48
7 80
8 -128
9 197
10 -312
11 472
12 -704
13 1046
14 -1504
15 2160
16 -3072
17 4306
18 -6036
19 8360
20 -11488
21 15712
22 -21264
23 28656
24 -38400
25 51127
26 -67864
27 89552
28 -117632
29 153926
30 -200352
31 259904
32 -335872
33 432336
34 -554952
35 709728
36 -904784
37 1150142
38 -1457136

[1,-4,8,-16,30,-48,80,-128,197,-312,472,-704,1046,
 -1504,2160,-3072,4306,-6036,8360,-11488,15712,
 -21264,28656,-38400,51127,-67864,89552,-117632,
 153926,-200352,259904,-335872,432336,-554952,
 709728,-904784,1150142,-1457136]

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)