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A090158 as a simple table

n a(n)
0 1
1 0
2 -3
3 9
4 -15
5 15
6 -63
7 399
8 -255
9 -7425
10 -1023
11 355839
12 -4095
13 -22360065
14 -16383
15 1903790079
16 -65535
17 -209865211905
18 -262143
19 29088885637119
20 -1048575
21 -4951498051026945
22 -4194303
23 1015423886515240959
24 -16777215
25 -246921480190174429185

[1,0,-3,9,-15,15,-63,399,-255,-7425,-1023,355839,
 -4095,-22360065,-16383,1903790079,-65535,
 -209865211905,-262143,29088885637119,-1048575,
 -4951498051026945,-4194303,1015423886515240959,
 -16777215,-246921480190174429185]

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)