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A136873 as a simple table

na(n)
10
21
310
4100
51000
610000
7100000
81000000
910000000
10100000000
111000000000
129777075001
1310000000000
1497770750010
15100000000000
16717997055001
17959050150501
18977707500100
191000000000000
207179970550010
217550970170501
229590501505010
239777075001000
2410000000000000
2571799705500100
2675509701705010

[0,1,10,100,1000,10000,100000,1000000,10000000,
 100000000,1000000000,9777075001,10000000000,
 97770750010,100000000000,717997055001,
 959050150501,977707500100,1000000000000,
 7179970550010,7550970170501,9590501505010,
 9777075001000,10000000000000,71799705500100,
 75509701705010]