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A087779 as a simple table

na(n)
019
143
267
331
42087
529
631
789
86359
931
1029
1119
1231
13199
141429
1529
16229
17641
1831
1941
2029
2131
2219
2389
2431
2529
2641
2731
2829573
2938729
3029
3189
32389
3319
3443103
3529
3631
3767
38929
3931
4029
4138729
4231
4389
4419
4529
46146543
4741
4831
491193
5029
5131
525077
5353
5431
5519
56449
5731
58701

[19,43,67,31,2087,29,31,89,6359,31,29,19,31,199,
 1429,29,229,641,31,41,29,31,19,89,31,29,41,31,
 29573,38729,29,89,389,19,43103,29,31,67,929,31,29,
 38729,31,89,19,29,146543,41,31,1193,29,31,5077,53,
 31,19,449,31,701]