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A107920 as a simple table

n a(n)
0 0
1 1
2 1
3 -1
4 -3
5 -1
6 5
7 7
8 -3
9 -17
10 -11
11 23
12 45
13 -1
14 -91
15 -89
16 93
17 271
18 85
19 -457
20 -627
21 287
22 1541
23 967
24 -2115
25 -4049
26 181
27 8279
28 7917
29 -8641
30 -24475
31 -7193
32 41757
33 56143
34 -27371
35 -139657
36 -84915
37 194399
38 364229
39 -24569
40 -753027
41 -703889
42 802165
43 2209943
44 605613
45 -3814273

[0,1,1,-1,-3,-1,5,7,-3,-17,-11,23,45,-1,-91,-89,
 93,271,85,-457,-627,287,1541,967,-2115,-4049,181,
 8279,7917,-8641,-24475,-7193,41757,56143,-27371,
 -139657,-84915,194399,364229,-24569,-753027,
 -703889,802165,2209943,605613,-3814273]

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Last modified November 21 03:01 EST 2018. Contains 317427 sequences. (Running on oeis4.)