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A147430 as a simple table

na(n)
11
21
31
41
51
61
71
81
99
109
1125
1225
1389
1489
15469
16469
175217
185217
1982459
2082459
211354121
221354121
2328702995
2428702995
25915889909
26915889909

[1,1,1,1,1,1,1,1,9,9,25,25,89,89,469,469,5217,
 5217,82459,82459,1354121,1354121,28702995,
 28702995,915889909,915889909]