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A259921
as a simple table
n
a(n)
3
1
4
3
5
5
6
15
7
30
8
40
9
50
10
103
11
105
12
115
13
130
14
140
15
150
16
204
17
214
18
240
19
250
20
316
21
317
22
325
[1,3,5,15,30,40,50,103,105,115,130,140,150,204, 214,240,250,316,317,325]