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A091421 as a simple table

na(n)
11
22
33
44
56
67
78
815
919
1031
1168
1269
1378
1482
15162
16210
17524
18770
191058
201437
211730
223977
235104
248440

[1,2,3,4,6,7,8,15,19,31,68,69,78,82,162,210,524,
 770,1058,1437,1730,3977,5104,8440]