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A022694 as a simple table

n a(n)
0 1
1 -2
2 -1
3 -2
4 9
5 -2
6 10
7 -16
8 38
9 -98
10 53
11 -116
12 340
13 -434
14 463
15 -990
16 2378
17 -2792
18 3660
19 -7058
20 11454
21 -18900
22 24104
23 -36206
24 81623
25 -119400
26 128194
27 -248062
28 447066
29 -576154
30 880401
31 -1415926
32 2297516
33 -3724290
34 4854450
35 -7299306
36 13411402
37 -19129752
38 25135890
39 -42841396
40 71321016

[1,-2,-1,-2,9,-2,10,-16,38,-98,53,-116,340,-434,
 463,-990,2378,-2792,3660,-7058,11454,-18900,24104,
 -36206,81623,-119400,128194,-248062,447066,
 -576154,880401,-1415926,2297516,-3724290,4854450,
 -7299306,13411402,-19129752,25135890,-42841396,
 71321016]

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Last modified March 28 16:00 EDT 2024. Contains 371254 sequences. (Running on oeis4.)