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A065520 as a simple table

na(n)
11
22
33
45
57
69
711
813
917
1019
1121
1223
1327
1429
1531
1633
1737
1839
1951
2053
2157
2259
2371
2473
2577
2679
2791
2893
2997
3099
31111
32113
33117
34119
35131
36133
37137
38139
39171
40173
41177
42179
43191
44193
45197
46199
47211
48213
49217
50219
51231
52233
53237
54239
55271
56273
57277
58279
59291
60293
61297

[1,2,3,5,7,9,11,13,17,19,21,23,27,29,31,33,37,39,
 51,53,57,59,71,73,77,79,91,93,97,99,111,113,117,
 119,131,133,137,139,171,173,177,179,191,193,197,
 199,211,213,217,219,231,233,237,239,271,273,277,
 279,291,293,297]