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A018756 as a simple table

na(n)
11
22
34
45
57
610
714
820
928
1035
1149
1270
1398
14140
15196
16245
17490
18980

[1,2,4,5,7,10,14,20,28,35,49,70,98,140,196,245,
 490,980]