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A126069 as a simple table

na(n)
11
21
34
45
511
64
729
89
919
1011
11199
124
13521
1429
1531
1649
173571
1819
199349
2025
21211
22199
2364079
2436
2515251

[1,1,4,5,11,4,29,9,19,11,199,4,521,29,31,49,3571,
 19,9349,25,211,199,64079,36,15251]