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A274974 as a simple table

n a(n)
0 1
1 13
2 49
3 117
4 225
5 381
6 593
7 869
8 1217
9 1645
10 2161
11 2773
12 3489
13 4317
14 5265
15 6341
16 7553
17 8909
18 10417
19 12085
20 13921
21 15933
22 18129
23 20517
24 23105
25 25901
26 28913
27 32149
28 35617
29 39325
30 43281
31 47493
32 51969
33 56717
34 61745
35 67061
36 72673
37 78589
38 84817
39 91365
40 98241

[1,13,49,117,225,381,593,869,1217,1645,2161,2773,
 3489,4317,5265,6341,7553,8909,10417,12085,13921,
 15933,18129,20517,23105,25901,28913,32149,35617,
 39325,43281,47493,51969,56717,61745,67061,72673,
 78589,84817,91365,98241]

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Last modified August 18 18:04 EDT 2017. Contains 290732 sequences.