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A121670 as a simple table

n a(n)
0 0
1 -2
2 2
3 18
4 52
5 110
6 198
7 322
8 488
9 702
10 970
11 1298
12 1692
13 2158
14 2702
15 3330
16 4048
17 4862
18 5778
19 6802
20 7940
21 9198
22 10582
23 12098
24 13752
25 15550
26 17498
27 19602
28 21868
29 24302
30 26910
31 29698
32 32672
33 35838
34 39202
35 42770
36 46548
37 50542
38 54758
39 59202
40 63880
41 68798
42 73962

[0,-2,2,18,52,110,198,322,488,702,970,1298,1692,
 2158,2702,3330,4048,4862,5778,6802,7940,9198,
 10582,12098,13752,15550,17498,19602,21868,24302,
 26910,29698,32672,35838,39202,42770,46548,50542,
 54758,59202,63880,68798,73962]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)