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A136875 as a simple table

na(n)
10
21
310
4100
51000
610000
7100000
81000000
91077776
1010000000
1110777760
12100000000
13107777600
141000000000
151077776000
1610000000000
1710777760000
18100000000000
19107777600000
201000000000000
211077776000000
2210000000000000
2310777760000000
24100000000000000
25107777600000000

[0,1,10,100,1000,10000,100000,1000000,1077776,
 10000000,10777760,100000000,107777600,1000000000,
 1077776000,10000000000,10777760000,100000000000,
 107777600000,1000000000000,1077776000000,
 10000000000000,10777760000000,100000000000000,
 107777600000000]