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A002800
as a simple table
n
a(n)
1
1
2
5
3
10
4
21
5
26
6
53
7
50
8
85
9
91
10
130
11
122
12
210
13
170
14
250
15
260
16
341
17
290
18
455
[1,5,10,21,26,53,50,85,91,130,122,210,170,250,260, 341,290,455]