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A285635 as a simple table

n a(n)
0 1
1 -2
2 2
3 -2
4 0
5 0
6 -2
7 2
8 -4
9 0
10 -2
11 -6
12 0
13 -10
14 -6
15 -12
16 -20
17 -20
18 -40
19 -46
20 -68
21 -104
22 -132
23 -204
24 -280
25 -394
26 -578
27 -790
28 -1154
29 -1616
30 -2294
31 -3286
32 -4614
33 -6610
34 -9340
35 -13278
36 -18878
37 -26748
38 -38060
39 -53978
40 -76684
41 -108912
42 -154600
43 -219622
44 -311812
45 -442818
46 -628866
47 -892962
48 -1268168

[1,-2,2,-2,0,0,-2,2,-4,0,-2,-6,0,-10,-6,-12,-20,
 -20,-40,-46,-68,-104,-132,-204,-280,-394,-578,
 -790,-1154,-1616,-2294,-3286,-4614,-6610,-9340,
 -13278,-18878,-26748,-38060,-53978,-76684,-108912,
 -154600,-219622,-311812,-442818,-628866,-892962,
 -1268168]

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Last modified July 17 16:16 EDT 2024. Contains 374377 sequences. (Running on oeis4.)