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A068174 as a simple table

na(n)
19
219
3109
41009
510009
6100019
71000159
810001569
9100001569
101000015069
1110000135069
12100001350649
131000013500649
1410000130500649
15100001303500649
161000013032500649
1710000103032500649
18100001030325003649
191000010130325003649
2010000101303250036493

[9,19,109,1009,10009,100019,1000159,10001569,
 100001569,1000015069,10000135069,100001350649,
 1000013500649,10000130500649,100001303500649,
 1000013032500649,10000103032500649,
 100001030325003649,1000010130325003649,
 10000101303250036493]