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A156976 as a simple table

na(n)
129
231
359
471
579
6229
7239
8251
9271
10331
11359
12379
13521
14571
15739
16751
172221
182239
192251
202339
212351
222371
232521
242531
252539
262551
272579
282729
292731
303221
313229
323251
333259
343271
353329
363331
373359
383371
393529
403539
413559
423571
433739
443779
455231
465279

[29,31,59,71,79,229,239,251,271,331,359,379,521,
 571,739,751,2221,2239,2251,2339,2351,2371,2521,
 2531,2539,2551,2579,2729,2731,3221,3229,3251,3259,
 3271,3329,3331,3359,3371,3529,3539,3559,3571,3739,
 3779,5231,5279]