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A018598 as a simple table

na(n)
11
22
34
45
57
610
714
820
925
1028
1135
1250
1370
14100
15140
16175
17350
18700

[1,2,4,5,7,10,14,20,25,28,35,50,70,100,140,175,
 350,700]