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A070844 as a simple table

na(n)
11
211
3121
41003
514641
6100017
71771561
810000005
9100020001
101000000016
1125937424601
12100000000004
133138428376721
1410000000001344
15100000720001296
161000000000000006
1745949729863572161
18100000000000000404

[1,11,121,1003,14641,100017,1771561,10000005,
 100020001,1000000016,25937424601,100000000004,
 3138428376721,10000000001344,100000720001296,
 1000000000000006,45949729863572161,
 100000000000000404]