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A261182 as a simple table

na(n)
12
27
329
479
597
6227
7229
8277
9727
10797
11929
12977
13997
142297
152729
162777
172797
182927
192999
207229
217297
227727
237927
249227
259277
269929
2722229
2822277
2922279
3022727
3122777
3227277
3327299
3427779
3527799
3627997
3729297
3829927
3972227
4072229
4172277
4272727
4372797

[2,7,29,79,97,227,229,277,727,797,929,977,997,
 2297,2729,2777,2797,2927,2999,7229,7297,7727,7927,
 9227,9277,9929,22229,22277,22279,22727,22777,
 27277,27299,27779,27799,27997,29297,29927,72227,
 72229,72277,72727,72797]