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A057238 as a simple table

na(n)
11
23
39
427
533
681
7143
8243
9729
102187
112673
124779
136561
148613
159713
1619683
1730393
1855647
1959049
2079257
2194113
22162081
23177147
24216513
25225837
26281961
27531441
281033803
291594323
302318147
313053781
324337031
334782969
346042681

[1,3,9,27,33,81,143,243,729,2187,2673,4779,6561,
 8613,9713,19683,30393,55647,59049,79257,94113,
 162081,177147,216513,225837,281961,531441,1033803,
 1594323,2318147,3053781,4337031,4782969,6042681]