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A027480 formatted as a simple table:

n a(n)
0 0
1 3
2 12
3 30
4 60
5 105
6 168
7 252
8 360
9 495
10 660
11 858
12 1092
13 1365
14 1680
15 2040
16 2448
17 2907
18 3420
19 3990
20 4620
21 5313
22 6072
23 6900
24 7800
25 8775
26 9828
27 10962
28 12180
29 13485
30 14880
31 16368
32 17952
33 19635
34 21420
35 23310

[0,3,12,30,60,105,168,252,360,495,660,858,1092,
 1365,1680,2040,2448,2907,3420,3990,4620,5313,6072,
 6900,7800,8775,9828,10962,12180,13485,14880,16368,
 17952,19635,21420,23310]

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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