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A268488 as a simple table

na(n)
11
219
329
413
549
659
723
879
989
1011
11109
12119
1343
14139
15149
1653
17169
18179
1921
20199
21209
2273
23229
24239
2583
26259
27269
2831
29289
30299
31103
32319
33329
34113
35349
36359
3741
38379
39389
40133
41409
42419
43143
44439
45449
4651
47469
48479
49163
50499
51509
52173
53529
54539
5561

[1,19,29,13,49,59,23,79,89,11,109,119,43,139,149,
 53,169,179,21,199,209,73,229,239,83,259,269,31,
 289,299,103,319,329,113,349,359,41,379,389,133,
 409,419,143,439,449,51,469,479,163,499,509,173,
 529,539,61]