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A045468 as a simple table

na(n)
111
219
329
431
541
659
761
871
979
1089
11101
12109
13131
14139
15149
16151
17179
18181
19191
20199
21211
22229
23239
24241
25251
26269
27271
28281
29311
30331
31349
32359
33379
34389
35401
36409
37419
38421
39431
40439
41449
42461
43479
44491

[11,19,29,31,41,59,61,71,79,89,101,109,131,139,
 149,151,179,181,191,199,211,229,239,241,251,269,
 271,281,311,331,349,359,379,389,401,409,419,421,
 431,439,449,461,479,491]