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A098146 as a simple table

na(n)
09
115
2111
31003
410001
5100001
61000001
710000001
8100000001
91000000013
1010000000003
11100000000007
121000000000007
1310000000000015
14100000000000013
151000000000000003
1610000000000000003
17100000000000000015

[9,15,111,1003,10001,100001,1000001,10000001,
 100000001,1000000013,10000000003,100000000007,
 1000000000007,10000000000015,100000000000013,
 1000000000000003,10000000000000003,
 100000000000000015]