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A128498 as a simple table

n a(n)
0 1
1 1
2 -3
3 -3
4 7
5 7
6 -13
7 -13
8 22
9 22
10 -34
11 -34
12 50
13 50
14 -70
15 -70
16 95
17 95
18 -125
19 -125
20 161
21 161
22 -203
23 -203
24 252
25 252
26 -308
27 -308
28 372
29 372
30 -444
31 -444
32 525
33 525
34 -615
35 -615
36 715
37 715
38 -825
39 -825
40 946
41 946
42 -1078
43 -1078
44 1222
45 1222
46 -1378
47 -1378
48 1547
49 1547
50 -1729
51 -1729
52 1925
53 1925
54 -2135
55 -2135

[1,1,-3,-3,7,7,-13,-13,22,22,-34,-34,50,50,-70,
 -70,95,95,-125,-125,161,161,-203,-203,252,252,
 -308,-308,372,372,-444,-444,525,525,-615,-615,715,
 715,-825,-825,946,946,-1078,-1078,1222,1222,-1378,
 -1378,1547,1547,-1729,-1729,1925,1925,-2135,-2135]

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Last modified April 19 13:40 EDT 2024. Contains 371792 sequences. (Running on oeis4.)