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A081273
as a simple table
n
a(n)
1
1
2
10
3
28
4
55
5
91
6
136
7
190
8
253
9
325
10
406
11
496
12
595
13
703
14
820
15
946
16
1081
17
1225
18
1378
[1,10,28,55,91,136,190,253,325,406,496,595,703, 820,946,1081,1225,1378]