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A165860 as a simple table

na(n)
11
239
339
41521
539
61521
739
859319
91521
101521
1139
1259319
1339
141521
151521
162313441
1739
1859319
1939
2059319
211521
221521
2339
242313441
251521
261521
2759319
2859319
2939
3059319
3139
3290224199
331521
341521
351521
362313441
3739
381521
391521
402313441
4139
4259319
4339

[1,39,39,1521,39,1521,39,59319,1521,1521,39,59319,
 39,1521,1521,2313441,39,59319,39,59319,1521,1521,
 39,2313441,1521,1521,59319,59319,39,59319,39,
 90224199,1521,1521,1521,2313441,39,1521,1521,
 2313441,39,59319,39]