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A084664
as a simple table
n
a(n)
1
0
2
1
3
5
4
10
5
25
6
50
7
65
8
100
9
146
10
250
11
405
12
500
13
510
14
521
15
615
16
650
17
768
18
945
19
965
20
1000
[0,1,5,10,25,50,65,100,146,250,405,500,510,521, 615,650,768,945,965,1000]