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A024521
as a simple table
n
a(n)
1
1
2
2
3
6
4
11
5
18
6
29
7
42
8
59
9
78
10
101
11
130
12
161
13
198
14
239
15
282
16
329
17
382
18
441
19
502
20
569
[1,2,6,11,18,29,42,59,78,101,130,161,198,239,282, 329,382,441,502,569]