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A007518 as a simple table

n a(n)
0 0
1 3
2 9
3 21
4 39
5 66
6 102
7 150
8 210
9 285
10 375
11 483
12 609
13 756
14 924
15 1116
16 1332
17 1575
18 1845
19 2145
20 2475
21 2838
22 3234
23 3666
24 4134
25 4641
26 5187
27 5775
28 6405
29 7080
30 7800
31 8568
32 9384
33 10251
34 11169
35 12141
36 13167
37 14250
38 15390

[0,3,9,21,39,66,102,150,210,285,375,483,609,756,
 924,1116,1332,1575,1845,2145,2475,2838,3234,3666,
 4134,4641,5187,5775,6405,7080,7800,8568,9384,
 10251,11169,12141,13167,14250,15390]

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Last modified May 21 16:16 EDT 2013. Contains 225504 sequences.