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A060828 as a simple table

na(n)
01
11
21
33
43
53
69
79
89
981
1081
1181
12243
13243
14243
15729
16729
17729
186561
196561
206561
2119683
2219683
2319683
2459049
2559049
2659049
271594323
281594323
291594323
304782969
314782969
324782969
3314348907
3414348907
3514348907
36129140163
37129140163
38129140163
39387420489

[1,1,1,3,3,3,9,9,9,81,81,81,243,243,243,729,729,
 729,6561,6561,6561,19683,19683,19683,59049,59049,
 59049,1594323,1594323,1594323,4782969,4782969,
 4782969,14348907,14348907,14348907,129140163,
 129140163,129140163,387420489]