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A031031 as a simple table

na(n)
13
29
331
443
555
657
765
870
980
1088
1197
12103
13111
14116
15117
16123
17131
18147
19150
20151
21156
22170
23176
24182
25190
26195
27200
28205
29217
30221
31225
32230
33235
34236
35241
36256
37263
38264
39265
40274
41275
42286
43295
44297
45299
46302
47304
48311
49315

[3,9,31,43,55,57,65,70,80,88,97,103,111,116,117,
 123,131,147,150,151,156,170,176,182,190,195,200,
 205,217,221,225,230,235,236,241,256,263,264,265,
 274,275,286,295,297,299,302,304,311,315]