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A109378 as a simple table

na(n)
04
16
210
3221
41003
522226
6100001
72222245
810000001
9222222223
101000000006
112222222227
12100000000013
132222222222249
1410000000000015
15222222222222223
1610000000000000031
1722222222222222229
18100000000000000015

[4,6,10,221,1003,22226,100001,2222245,10000001,
 222222223,1000000006,2222222227,100000000013,
 2222222222249,10000000000015,222222222222223,
 10000000000000031,22222222222222229,
 100000000000000015]