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A018519 as a simple table

na(n)
11
22
34
45
57
68
710
814
916
1020
1128
1235
1340
1456
1570
1680
17112
18140
19280
20560

[1,2,4,5,7,8,10,14,16,20,28,35,40,56,70,80,112,
 140,280,560]