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A033579 as a simple table

n a(n)
0 0
1 4
2 20
3 48
4 88
5 140
6 204
7 280
8 368
9 468
10 580
11 704
12 840
13 988
14 1148
15 1320
16 1504
17 1700
18 1908
19 2128
20 2360
21 2604
22 2860
23 3128
24 3408
25 3700
26 4004
27 4320
28 4648
29 4988
30 5340
31 5704
32 6080
33 6468
34 6868
35 7280
36 7704
37 8140
38 8588
39 9048
40 9520
41 10004
42 10500
43 11008
44 11528
45 12060

[0,4,20,48,88,140,204,280,368,468,580,704,840,988,
 1148,1320,1504,1700,1908,2128,2360,2604,2860,3128,
 3408,3700,4004,4320,4648,4988,5340,5704,6080,6468,
 6868,7280,7704,8140,8588,9048,9520,10004,10500,
 11008,11528,12060]

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Last modified May 12 18:22 EDT 2024. Contains 372494 sequences. (Running on oeis4.)