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A239747 as a simple table

na(n)
153
2317
3599
4797
52393
63793
73797
87331
923333
1023339
1131193
1231379
1337397
1473331
15373393
16593993
17719333
18739397
19739399
202399333
217393931
227393933
2323399339
2429399999
2537337999
2659393339
2773939133

[53,317,599,797,2393,3793,3797,7331,23333,23339,
 31193,31379,37397,73331,373393,593993,719333,
 739397,739399,2399333,7393931,7393933,23399339,
 29399999,37337999,59393339,73939133]