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A006009 as a simple table

n a(n)
1 4
2 16
3 48
4 108
5 216
6 384
7 640
8 1000
9 1500
10 2160
11 3024
12 4116
13 5488
14 7168
15 9216
16 11664
17 14580
18 18000
19 22000
20 26620
21 31944
22 38016
23 44928
24 52728
25 61516
26 71344
27 82320
28 94500
29 108000
30 122880
31 139264
32 157216
33 176868
34 198288
35 221616
36 246924
37 274360
38 304000
39 336000

[4,16,48,108,216,384,640,1000,1500,2160,3024,4116,
 5488,7168,9216,11664,14580,18000,22000,26620,
 31944,38016,44928,52728,61516,71344,82320,94500,
 108000,122880,139264,157216,176868,198288,221616,
 246924,274360,304000,336000]

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Last modified May 3 15:03 EDT 2024. Contains 372215 sequences. (Running on oeis4.)